A woman wakes up every night at 3:33 AM, specifically during what's considered the "Devil's Hour," between 3 AM and 4 AM, for unknown reasons. Social worker Lucy Chambers struggles with recurring memories and vivid visions of events that haven't occurred in real life. Meanwhile, police are investigating a string of random murders connected to Lucy and her son Isaac.
A mother's desperation to help her troubled son converges with a detective's ...