Happy Death Day 2U

Tree Gelbman thought she had escaped the deadly time loop when she learnt the identity of her attacker. Unexpectedly, Tree becomes trapped in another loop and faces a similarly masked attacker, who strikes a fatal blow to her sorority sister Lori. As before, Tree joins forces with handsome beau Carter to unravel the mystery but this time, she also enlists the services of science geeks Samar and Dre to take a rigorous academic approach to her predicament.