Half-heard whispers. A creaking door. A missed step. From Vertigo to Videodrome, the scariest movies exploit our greatest – and most basic – fears. Constructed from cinema's most heart-stopping moments, Charlie Lyne's (Beyond Clueless) film explores how filmmakers scare us – and why we let them. A girl haunted by traumatic events takes us on a mesmerising journey through 100 years of horror cinema to uncover the fundamental nature of fear. It may change the way you watch horror movies for good.