There's Someone Inside Your House

 is an American teen horror film directed by Patrick Brice from a screenplay by Henry Gayden and produced by James Wan’s Atomic Monster and Shawn Levy’s 21 Laps. The film is based on Stephanie Perkins’ New York Times best-selling novel of the same name.

Summary
"Makani and her friends at Osborne High School try to identify and stop a masked killer who's targeting students and exposing their biggest secrets."

- Official Netflix synopsis

Cast and Characters

 * Sydney Park as Makani Young
 * Théodore Pellerin as Ollie Larsson
 * Asjha Cooper as Alex Crisp
 * Dale Whibley as Zach Sandford
 * Jesse LaTourette as Darby
 * Diego Josef as Rodrigo Doran
 * Burkely Duffield as Caleb Greeley
 * Sarah Dugdale as Katie Koons
 * William MacDonald as Mr. Sandford
 * Andrew Dunbar as Deputy Larsson
 * Markian Tarasiuk as Jackson Pace