It's a collection of short murder mystery stories by veteran novelist Rintaro Norizuki.
The first story is a 'game of wit', 'daily life' piece of work, no one dies in the story, but the story is still interesting. 4 stars.
The second story is a 'double suicides' case, a married man and a woman were found dead on two trains, did they commit love suicide or was it something else? Plot Spoiler: 4.5 stars.
The third story: a novelist is invited to a TV show about paranormal activities, the explanation for the murder mystery is a logical one, but the one thing that impresses me is the novelist says: "I should have just let you guys get crushed by that crystal chandelier." XD
3.5 stars.
The fourth story uses the well known trick of 'exchanged murders', and a few classical novels using the same trick are mentioned in the story, the final explanation is nice but it isn't very outstanding. 3 stars.
The last story about the suspicious 'suicide' of a young Office Lady, is the killer her lover, his wife or is that someone else? The final explanation is nice and the scheme is so clever, I'm impressed! 5 stars.