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(FBI Thriller #20)

4.08  ·  Rating details ·  8,095 ratings  ·  643 reviews
Insidious is the twentieth thriller in #1 New York Times bestselling author Catherine Coulter's FBI series. FBI agents Savich and Sherlock must discover who is trying to murder Venus Rasmussen, a powerful, wealthy society icon. They soon find out that the danger may be closer than expected.

Venus Rasmussen, a powerful woman who runs the international conglomerate Rasmussen
Hardcover, 358 pages
Published August 9th 2016 by Gallery Books
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Becky Catherine Coulter started out years ago as a (great) romance writer and has made the (difficult) break-through to Fiction/Thriller writing, but to my …moreCatherine Coulter started out years ago as a (great) romance writer and has made the (difficult) break-through to Fiction/Thriller writing, but to my knowledge all of her FBI Thriller series still contain an element of romance, usually one or more couple coming together during the solving of the mystery or the novel's action, even though the emphasis is now on the thriller part. CC has had a wide customer romance base almost from the start --- it's the fiction/thriller readers that are the newer readers for her. :) However you care to view her writings, they are superb.(less)

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Average rating 4.08  · 
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Jun 27, 2016 rated it it was amazing
“There’s a fine line between support and stalking and let’s all stay on the right side of that.”

----Joss Whedon

Catherine Coulter, #1 New York Times bestselling author, pens a gripping pot-boiler in her twentieth FBI Thriller series, called Insidious that unfolds two mysteries surrounding an attempt to murder an aged social icon and owner of a group of million-dollar industries in Washington which is investigated by the married FBI duo and another surrounding the serial killings of five actres
Apr 29, 2019 rated it did not like it
There are not many worse plots than rich family squabbles as a basis for this novel. 2 of 10 stars
Alex is The Romance Fox
Insidious (FBI Thriller Series #20) by Catherine Coulter is an okay read. I liked it but just felt it could have been so much better.

There are two mysteries happening at the same time......Savich and Sherlock are looking into the possible poisoning of one of his grandmother's old friends and FBI Agent Cam Wittier and Detective Daniel are working together in California trying to track down a vicious serial killer that is killing young and beautiful movie stars.

There are some good parts.....loved
Sep 24, 2017 rated it it was amazing
Catherine Coulter has written yet another well-paced, interesting thriller, this time where FBI agents Shepard and Savich are trying to figure out which family member of an elderly businesswoman is trying to poison her and steal her money and corporate fortunes, while Cam is off in LA tracking a serial killer. I like her writing because it's detailed enough without ever getting super gory. We're parceled out information at a steady rate as the detectives work to solve the case and the twists jus ...more
Adah Udechukwu
Jun 12, 2018 rated it liked it
Insidious was below par. It didn't pull me in. I didn't feel the novel. It was disjointed and it didn't flow properly. ...more
Aug 05, 2016 rated it really liked it
Insidious by Catherine Coulter is a 2016 Gallery Books publication. I was provided a copy of this book as an XOXpert the official street team of XOXO After Dark, and Edelweiss.

This twentieth installment in Catherine Coulter’s FBI series takes on two separate cases, one featuring the popular husband and wife team, Savich and Sherlock, who must determine who is trying to kill an elderly socialite and an up and coming FBI superstar, Cam Whittier, takes on a serial killer in Los Angles who is targe
I know some readers will disagree but I was so relieved that this book broke just a bit from the more recent formula. You know, Sherlock and Savich bring in a new investigator who falls in love with someone (usually on the team), there's paranormal, crazy-pants antics and everyone ends up with an HEA. Some of that happens in "Insidious," but it's not the absolute same well-worn path.
Sherlock and Savich are called in when Venus Rasmussen, famous eighty-year-old billionaire entrepreneur, suspects
Cardyn Brooks
Conscientiously read to page 100, then skimmed to page 200 before stopping.

It's so difficult to give up on C.C. because seeing her name on a book cover reminds me of hours of reading pleasure of her back list (up to Split Second and not including her early historical where Graelam(?) the rapist in one book is the "hero" in a subsequent title). During the peak of her writing prowess, splurging to buy her new releases asap because waiting for a library copy was too torturous for my need to read C
Laura Rash
This started out with a bang & slowly went downhill
Gloria ~ mzglorybe
I’ve enjoyed this series featuring Savitch/Sherlock partners in life and in work, both in law enforcement, FBI. However I found this one lacking the suspense that Coulter’s thrillers usually provide. This was a two-plot novel.

1) Someone is poisoning an elderly wealthy lady who was Savitch’s mothers friend. He and Sherlock come to her aid in discovering the culprit and motive.

2) Budding actresses are being slain by a serial slasher — who and why?

Eventually the cases are resolved, although the s
Jun 20, 2016 marked it as to-read
* I won this book in a Goodreads giveaway. I will read and review the book when I receive it.*
Aug 08, 2017 rated it really liked it
Dillon Savich & Lacey Sherlock, husband and wife FBI agents have again met the challenge, but not without losing several beautiful, young aspiring actresses. There are many serial suspects with primary investigative focus on doctors, movie producers and a putzy stalker who is enamored with one of the female targets. While this investigation is going on, there is another story within this story.
Within a wealthy and powerful societal family, someone has attempted to murder Venus Rasmussen, the 86
John W.
Oct 11, 2016 rated it it was amazing
Catherine Coulter's INSIDIOUS is fast moving mystery thriller with surprises on every page. The storyline comes alive as if readers are watching a motion picture. Her characters are well developed and believable. Coulter's unbelievable ending will give her readers goosebumps. ...more
Rebecca Delio
Oct 09, 2016 rated it it was amazing  ·  review of another edition

I love all Catherine Coulter books in fact, I have them all, this book was great, the story was great. I hope when you read it you will love it like I did...
Cameron Wiggins
Apr 24, 2017 rated it really liked it
First, I would like to express my thanks to GoodReads Give-Aways, Simon & Schuster’s Gallery Books Publications, with a special thank you going out to marketing assistant MacKenzie Hickey, who made my day.
Insidious is Coulter’s 20th FBI thriller, and she knows her stuff quite well by now, and this shines in her writing. Insidious again features Coulter’s staple FBI agents, an inseparable team, Dillon Savich and Lacey Sherlock, who are now married. However, there is an interesting twist to this C
Sarah Nessler
Sep 28, 2017 rated it it was amazing  ·  review of another edition
What a thrilling novel! I love this FBI series by Catherine Coulter. It has yet to get old. Saving and Sherlock are on yet another case for a family friend whom is being poisoned will they figure out who it is before they die? Read to find out. Saviches teammate is on the west cost trying to find the Starlit Slasher, a serial killer killing beautiful tragic! Cam teams up with Daniel Montoya to break through this case. Many dips and twists I was intrigued throughout the story. So ...more
Victoria Colotta
Aug 20, 2016 rated it really liked it
Book Review

Insidious is a smart and calculated thriller that will lure you in with serial killers and murderous plots. Then keep you on the edge of your seat and guessing whodunit until the very last page.

In the twentieth installment of Coulter’s FBI Thriller series, the reader gets two mysteries in one. Agents Savich and Sherlock are on the hunt for the person who is trying to murder a powerful matriarch of the Rasmussen family, Venus, and Agent Cam Wittier is brought into the search for a serial killer c
Eva • All Books Considered
Review originally posted at All Books Considered: 2.5 STARS

After 20 books, I am officially breaking up with this series. While this 20th book, Insidious, was better than book 19, either the books have changed or I have changed and that magic that made me look forward to the latest book in this series every summer is gone. I think the series has gone on too long such that it is no longer is fresh and new (kind of running out of ideas). Specifically as to this book, what I really noticed was t
I'm really bummed by this book. It is really hard when an author removes an element from the plot that you have grown to really love. Catherine Coulter is following a trend she set several books back in that she has removed to romance element from her plot. I really miss it and am devastated that it's gone, probably for good. Insidious, as a mystery, is a good book. It delivers on a two front mystery and the characters are well drawn and likeable, but it is so hard to review the book knowing tha ...more
Jul 26, 2016 rated it it was amazing  ·  review of another edition
My re-read review stands from my first read. This was a goodie!

There are two separate investigations going on with two separate teams and, yet, you have no problem at all following both. With other authors I can figure out who the murderer(s) is/are well before the book ends. I am always stumped and surprised with Catherine Coulter's FBI Thrillers and I love that. I never saw either of those endings to the murders coming.

I love Dillon and Sherlock and I hope Ms. Coulter never stops writing her F
Jan 14, 2019 rated it it was amazing  ·  review of another edition
This was #20. There are 22 so far in the "FBI Thriller" series, but somehow I had missed this one. It was really engrossing and fun - Coulter can still keep me glued to the page. Savitch and Sherlock are marvelous as always, and there is a new (to me) agent, Cam Wittier. She is a terrific character - smart and interesting. As usual in this series, there are two plots. One concerns a wealthy woman who seems to be being slowly poisoned by a member of her family. The other, main plot, concerns a se ...more
Gerry Bartlett
Mar 09, 2017 rated it really liked it
Shelves: mystery
Savich and Sherlock, FBI agents, are at work trying to figure out who is trying to poison the matriarch of a powerful family in Washington DC. Agent Cam Wittier is in Malibu on the West Coast chasing a serial killer who targets aspiring actresses. The book goes back and forth between the two mysteries. Frankly it wore me out a little. I liked Cam's story better, lost interest in the family drama and the too cute Savich story. Yes, Venus, the 86 year old is a neat character, but Coulter's habit o ...more
3.5 stars

It sounds a little odd to say a thriller is comfort food but that's exactly what this book was, and the series as a whole is. I know exactly what I'm getting, I know I'll like the story, and I know it will be a an entertaining read. Coulter doesn't break any new ground with this story, sticking to her series formula but with some minor changes. There are two mysteries and they both kept me guessing. Each had twists and red herrings and I didn't succeed in solving either of the mysterie
Nikki in Niagara
Aug 09, 2016 rated it liked it
I knew this book was part of a series when I chose it but I didn't realise it was book #20! That had me a little worried as I hadn't read the author before and starting a series at the end hardly ever works out. However, I was wrong to worry. For a mystery/thriller, this has a unique style, something more common to TV shows than books. The book contains two distinct and separate cases involving different Agents with only very minimal contact as the lower-ranked Agent occasionally checks in with ...more
Aug 18, 2016 rated it liked it  ·  review of another edition
Just okay.

First time I read a book written by this author, and knew it was the 20th book in this series. Two different cases, in two different cities. As mystery/thriller different style, and narrators one male and one female. For me it was slow going and chatty.
This review has been hidden because it contains spoilers. To view it, click here.
Fredrick Danysh
Aug 27, 2018 rated it liked it
Really two parallel stories are going on at the same time. In Washington, DC, someone is trying to kill a rich, elderly business icon. On the West Coast a serial killer is targeting beautiful young actresses. Two good mysteries populated with good looking, affluent FBI agents and police officer with much detail to the fashions worn by the characters.
Aug 28, 2016 rated it liked it
Insidious by Catherine Coulter
FBI series Book #20

From The Book:
FBI agents Savich and Sherlock must discover who is trying to murder Venus Rasmussen, a powerful, wealthy society icon. They soon find out that the danger may be closer than expected.

Venus Rasmussen, a powerful woman who runs the international conglomerate Rasmussen Industries, believes someone is poisoning her. After Savich and Sherlock visit with her, someone attempts to shoot her in broad daylight. Who’s trying to kill her and
Jul 10, 2016 rated it it was ok
Shelves: crime, giveaways
Insidious has parallel storylines running through it. One is to do with Venus Rasmussen, an 86 year old business tycoon, who after a few episodes of bad stomach reactions has determined that she is being poisoned by arsenic. The second storyline involves a serial killer whose victims are Hollywood starlets. Both cases felt like a CSI episode where the experts jump to conclusions that are magically backed up by forensic techniques. Unfortunately, I don't like CSI and this book was not a match for ...more
David V.
Received as an ARC from the publisher. At first I felt that the conversations between the police officers were stilted. As a retired Juvenile Court Probation Officer, I knew many detectives and they just didn't talk in that style. The plot of a serial killer targeting young actresses was compelling. There was too much exposition between police officers toward the end; it took pages to explain who the perpetrator was. More action, less talk. ...more
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