Jessica Rothe, the lead actress of Happy Death Day, was born.
The movie Happy Death Day was released in theaters, marking its introduction to the public.
The sequel to Happy Death Day was released in theaters.
Tree wakes up on her birthday and begins the day unaware of the time loop.
Tree is killed in her dorm room by the masked assailant, triggering the time loop.
Following her murder, Tree wakes up again on her birthday morning, realizing she is reliving the same day.
Tree begins investigating those around her to find out who is trying to kill her each day.
After several loops, Tree contacts her father and revisits her dorm attempting to piece clues.
Tree continues to experience multiple deaths at the hands of the masked figure while refining her investigation.
Tree gathers evidence pointing to the potential involvement of Lori and Carter.
Tree deduces that Ryan, her roommate’s boyfriend, is the masked killer responsible for her deaths.
Tree confronts and kills Ryan, ending the time loop and her repeated murders.
After the loop ends, Tree wakes up on a new day where previous events have changed.
