In this psychological thriller, two men meet by chance on a long train journey and strike up a conversation that leads to a chilling pact: each will commit a murder for the other, executing what they believe to be the perfect crimes due to their lack of obvious connection to the victims. However, as one of the men becomes entangled in the sinister plan and the other's sociopathic tendencies emerge, the agreement spirals into a tense and dangerous game of cat and mouse, blurring the lines between victim and perpetrator, and pulling both men into a world of guilt, paranoia, and psychological torment.

The 1422nd greatest book of all time