Not long before The Quiet Ones comes out, and just to make sure we're sufficiently freaked out, a scary clip has been released which we have below.
Set in 1974, and inspired by actual events,The Quiet Ones tells the story of an unorthodox Oxford professor who uses controversial methods to lead his best students into taking part in a dangerous experiment - to create a poltergeist from negative human energy.
John Pogue directs Sam Claflin from Snow White and the Huntsman, and Mad Men's Jared Harris, along with the alluring, but seriously disturbed subject of their experiment, played by Olivia Cooke. Legendary British horror film production company Hammer Films (The Woman in Black) have produced it.
The Quiet Ones opens April 25th.