who keeps killing tree in happy death day
Happy Death Day However, the next morning Tree wakes up again on her birthday. Confused and distraught over the fact that killing Tombs did not stop the time loop, Tree returns to her room where Lori offers the cupcake again. Tree realizes that she had died in her sleep and also notes that this was the only time she had ever eaten the cupcake. Tree realizes that Lori is the true killer; Lori had poisoned the cupcake, but when Tree did not eat it, she utilized her job as a nurse in the hospital to frame Tombs for Tree's murder. Tree tries to coerce Lori to have a bite and when Lori refuses, Tree decides to take it to the police. Lori attacks Tree, locks the door and confesses that she was jealous of her affair with Dr. Butler. Tree manages to stuff the cupcake into Lori's mouth before kicking her out of a window, sending her falling to her death. Tree and Carter muse over the day's events back in the restaurant. He offers her his room for the night, also commenting her situation is a lot like the film Groundhog Day. Tree wakes up the next day believing herself to be in another loop, but it turns out to be a prank by Carter. The two share a kiss.