Detective Ben Wade has returned to his hometown of Rancho Santa Elena in search of a quieter life and to try to save his marriage. Suddenly the community, with its peaceful streets and excellent public schools, finds itself at the mercy of a serial killer who slips through windows and screen doors at night, shattering illusions of safety. As Ben and forensic specialist Natasha Betencourt struggle to stay one step ahead of the killer --- and deal with painful episodes in the past --- Ben’s own world is rocked again by violence. He must decide how far he is willing to go, and Natasha how much she is willing to risk, to protect their friendship and themselves to rescue the town from a psychotic murderer and a long-buried secret.