The killer is ruthless and resourceful. He turns every murder into a sophisticated game. This person is well aware that he cannot be called completely normal, but this even suits him. He has come up with certain rules for himself - the rules of a killer - and leaves a note with the next rule on each victim, signed with the nickname Crazy. However, Detective Lucas Davenport is not inferior to him in terms of ingenuity. He imposes his own game on the killer, in which there can only be one winner. Assassin's Rules is the first novel in the best-selling series about detective Lucas Davenport.