Following his former wife home on Valentine's Day, Stone discovers that escapees from Hell have taken over the neighborhood and one of them is dating her.
One of the escapees approaches Stone and tries to make a deal. When Stone refuses, the escapee starts taking revenge by killing the widows of police officers.
A damned soul is killing people who have gotten away with their crimes, or who he thinks has gotten away with their crimes. He electrocutes them, and leaves nothing left of the victims.
Detective Ezekiel Stone was murdered in 1983 and sent to Hell for having previously murdered his wife's rapist. Now he is being sent back to Earth to help track down escaped demonic souls, giving him a second chance.