In 1988, a detective becomes obsessed with a series of murders that seem to defy explanation. Philadelphia police officer Thomas Lockhart (Boyd Holbrook), hungry to become a detective, begins tracking a serial killer who mysteriously resurfaces every nine years. But when the killer's crimes begin to defy all scientific explanation, Locke's obsession with finding the truth threatens to destroy his career, his family, and possibly his sanity.

A man receives the power to tell if people are good or bad.