I spent most of this book thinking I read it before, until the twist at the end, which I didn't see coming and thus know this is the first time I read this book. The plot seemed familiar, a well-respected psychiatrist is found brutally murdered in his office, and the narrator, Dr. Ashman, his former colleague, is called to the murder scene to try to give police a profile of the type of person who could and would inflict the sort of wounds seen on the victim. The victim, Dr. Kolberg, made a career of treating very disturbed and violent patients, hence the book's title. At Kolberg's autopsy, Ashman learns a secret his friend had kept hidden, though apparently not from their other partner, Dr. Nichols.
The secret reminds Ashman of the only patient the two doctors shared, and the reason Ashman left the private practice, a young woman who made accusations against Kolberg and eventually became Ashman's patient. Ashman isn't sure who to believe, his well-respected colleague, or this patient, whose stories seem to be wild and rather exaggerated. Before Ashman could work his way through the mess, the woman committed suicide, an event that reminded Ashman of a childhood friend who also committed suicide after a traumatic event. Together, the loss of these two women, and the sudden death of his wife a couple years ago, continued to weigh heavily on Ashman and forced him to question who he was and what he believed in.
As mentioned, everything seemed familiar that I was certain I knew who murdered Kolberg, to the point I almost wanted to read the ending to see if I was right and thus skip reading the rest, knowing I'd read it before. It became clear about midway through the book that my suspect wasn't guilty, so I was glad I didn't spoil the ending. It was a decent book, and I do wish there was a sequel, as I feel that the character of Ashman has many more angles, and I'd be curious to see his continued processing of losing so many people who played important roles in his life. That said, it wasn't an amazing, unforgettable read, and the familiarity of it led to my average rating.