The Metropolitan Squad pursues a man who killed a housewife. The killer tricked the housewife to letting him in her house, making her believe he was a friend of her husband. The killer selects his victims after picking up information from people who have given a ride while he hitchhikes. Now, a woman who was assaulted by the killer earlier comes forward as new clues emerge about his M.O. Adams and his men race to find the killer before he can strike again.