New York murder detectives James Manning and Covina "Dewey" Duwai have been called in to investigate a string of bizarre deaths with scant leads. But when they apprehend a rabbinical scholar fleeing one of the crime scenes, they're brought face-to-face with the shocking truth: the Jewish legend of the hidden Righteous Men, the 36 who protect the world from destruction, is no legend at all. They are real, and they are being murdered. Manning and Dewey must save the last of the Righteous Men from a killer who may or may not be supernatural and who won't stop until he has brought the whole world to an end.