There's Someone Inside Your House

There's Someone Inside Your House is a 2021 American slasher film directed by Patrick Brice and written by Henry Gayden. It is an adaptation of the 2017 novel of the same name by Stephanie Perkins.

There's Someone Inside Your House was announced in March 2018, with Shawn Levy and James Wan producing through their respective production banners Atomic Monster and 21 Laps, for Netflix. Principal photography took place the following year in Vancouver with cinematographer Jeff Cutter; additional filming concluded in August 2020. During post-production, editing was completed by Michel Aller and the musical score was composed by Zachary Dawes.