It follows Monk, a brilliant detective with obsessive-compulsive disorder. He returns to solve one last case involving his stepdaughter Molly, a journalist preparing for her wedding.

根据真实故事改编：一对著名夫妇双重谋杀案震惊了整个社区，当地警方也在努力寻找凶手。当黑暗笼罩全城时，新来的牧师艾伯特必须帮助他的教会和家庭克服余震，提供稳定、疗愈和希望，而他的妻子艾美必须通过她的信仰来克服自己的恐惧。