Time Cut (2024)

Lucy, a modern high school senior and amateur inventor, finds a time machine and travels back to 2003, the year her sister was murdered by a serial killer. Now torn between solving the mystery that has undone her parents and her hometown, saving the sister that she never knew, and irreparably altering the future – and her own existence – Lucy must decide how to stop the slasher, save her family, and blend into 2003.