First trailer for The Walking Dead star's new Netflix movie

The Walking Dead's Sydney Park has swapped zombies for vengeful, murderous teens in her upcoming Netflix horror, There's Someone Inside Your House.

Ahead of the movie's fittingly spooky release next month, a brand new trailer for the Patrick Brice-directed project is here, starring Sydney Park as the lead Makani Young.

Our first look teases a movie that's violent, tense and unafraid to embrace a macabre sense of humour, so all the good stuff.

Park – who fans of The Walking Dead will recognise as Oceansider Cyndie – stars as a high-schooler whose countdown to graduation is ruined by a killer intent on exposing students' darkest secrets.

there's someone inside your house movie still

DAVID BUKACH/NETFLIX

Based on Stephanie Perkins' novel of the same name, There's Someone Inside Your House has been adapted for the small screen by Shazam!'s Henry Gayden and is produced by banners from horror expert James Wan and Stanger Things' Shawn Levy.

Teasing a classic slasher premise, the official synopsis for the upcoming horror promises an edge-of-your-seat mystery.

"Makani Young has moved from Hawaii to quiet, small-town Nebraska to live with her grandmother and finish high school, but as the countdown to graduation begins, her classmates are stalked by a killer intent on exposing their darkest secrets to the entire town, terrorising victims while wearing a life-like mask of their own face," it reads.

Netflix

"With a mysterious past of her own, Makani and her friends must discover the killer's identity before they become victims themselves."

Starring the likes of Park, Théodore Pellerin, Asjha Cooper, Dale Whibley, Jesse LaTourette, Diego Josef, Burkely Duffield, and Sarah Dugdale, There's Someone Inside Your House is set to arrive on Netflix on Wednesday, October 6.

The Walking Dead airs on AMC in the US. Meanwhile, UK viewers can now watch all episodes via STAR on Disney+.