During a brutal freshman conditioning drill, Nora collapses from heatstroke—only for her coach boyfriend, Chase, to believe Chloe’s lie and lock her inside a 120-degree equipment shed. Nora dies while Chase guards the door. Then she wakes up at the start of the same deadly day. Armed with memories of her murder, she turns the trap on those who betrayed her. But after exposing Chloe and destroying Chase, an encrypted message reveals a chilling truth: the real monster is still watching.