One night per year, the government sanctions a 12-hour period in which citizens can commit any crime they wish — including murder — without fear of punishment or imprisonment. Leo, a sergeant who lost his son, plans a vigilante mission of revenge during the mayhem. However, instead of a death-dealing avenger, he becomes the unexpected protector of four innocent strangers who desperately need his help if they are to survive the night.

When Keller Dover’s daughter and her friend go missing, he takes matters into his own hands as the police pursue multiple leads and the pressure mounts. But just how far will this desperate father go to protect his family?