When Jen witnesses her 18-year-old son, Todd, murder a man outside their home, her life is shattered. Todd is taken into custody, leaving Jen devastated and confused about why her "happy, funny, innocent son" would commit such a devastating act of violence. After falling asleep in despair, Jen wakes up to find it is yesterday—the day before the murder. She realizes she is traveling backward through time, reliving her life in reverse. Jen embarks on a mission to uncover the events that led to her son's terrible crime, hoping to find the trigger in the past and prevent the murder from ever happening. This unique time-travel thriller forces Jen to confront secrets about her son, husband, and her own life.