In an attempt to avenge her daughter’s death, Irene Kelly travels through parallel universes, killing her daughter’s murderer again and again. As she becomes consumed by vengeance, her humanity begins to slip away—until the cycle is disrupted when she rescues Mia, a sharp-witted teenager already marked by the killer.

The film follows a woman returning home to make amends and find peace a year after the unexpected, tragic death of her younger sister.