Time Cut

In 2003, in Sweetly, the teenager Summer goes to a teenage party on an isolated farm. She has just lost her three best friends that had been murdered and is not feeling well. The police arrive to stop the party since there is a serial-killer on the loose, but Summer is alone in the bathroom at the barn and is killed by the murderer. Twenty years later, her parents still grieve her loss, and they go to the place with her sister Lucy where there is a memorial. Lucy sees a flash in the barn and finds a strange device with the date 16 April 2003, the day before Summer died. Soon she is brought back to 2003, and she learns that the device is a time machine. She befriends the nerd Quinn at the high-school and asks him to help her to repair the machine and return to 2023. Soon she also befriends Summer and questions whether she should advise her sister or not, since she will affect the future and she will not be born if Summer survives.