As the countdown to graduation begins, students at Osborne High are being stalked by a maniac intent on exposing their darkest secrets to the entire town, terrorizing victims while wearing a life-like mask of their own face. With a mysterious past of her own, Makani and her friends must discover the killer's identity before they become victims themselves.
There's Someone Inside Your House is a 2021 American slasher film directed by Patrick Brice and adapted by Henry Gayden. It is an adaptation of the 2017 novel of the same name by Stephanie Perkins and stars Sydney Park, Théodore Pellerin, Asjha Cooper, Jesse LaTourette, and Diego Josef. The plot follows Makani Young (Park), a senior transfer student from Hawaii who finds herself in the center of gruesome murder cases in her newly acquainted town of Osborne, Nebraska.