Tree Gelbman, the feisty sorority sister, finds herself reliving the same day at college, grateful to be alive. This time, Ryan, Carter's roommate, is trapped in a time loop, being murdered by a mysterious killer in a baby-faced mask. Tree's attempt to help Ryan will send her back to the same day, stuck in a blood-drenched time loop.

Happy Death Day 2U
Tree Gelbman's reality is shattered as she uncovers the sinister forces driving her to relive the same day, putting her very existence at stake.