Two men randomly meet on a train. They are both fighting boredom and somehow Charles is very easy to talk to. Guy Haines ends up telling him all about his wife who cheated on him and is pregnant with another man´s child. With a little prodding from Charlie, Guy admits that he hates his wife. Charlie tells him he hates his father and begins to tell Guy about his plan for the perfect murder. His idea is that they kill for each other and no one would suspect either of them because they had no reason to kill people they didn´t know. Guy is horrified and quickly leaves thinking Charlie is just drunk. He was serious though as Guy finds out when he gets the call that his wife has been murdered. Charlie starts to call him and Guy realizes why.... Charlie wants him to finish the plan he had dreamed up.
When I first started reading this book I was intrigued by the story but not even half way I started to lose interest. The whole thing seemed so improbable. The more it went on the more outlandish it seemed. I made myself finish it to know how it ended but I found the discussion of murder in the first person very disturbing. Not my thing I guess.