10 Biggest WTF Moments In Slasher Movies

Contentiously the first true slasher film ever made, it could be argued that Alfred Hitchcock's Psycho represented one gigantic WTF moment for cinema upon its release.

Utilising an unprecedented combination of graphic sexuality and violence, audiences had quite literally never seen anything like the Master of Suspense's depraved masterpiece. The 1960 outing chronicles the disappearance of fugitive embezzler Marion Crane from a motel run by one Norman Bates, and the macabre series of events that follow.

While the movie's most iconic sequence is undoubtedly the scene in which Crane is murdered in the shower by a shadowy figure, Psycho's most WTF-worthy instance comes when her sister Lila discovers the nightmarish truth behind her sister's disappearance. Attempting to hide in the cellar of Bates' residence, Lila comes face to face with Norman's mother - finally unmasked as nothing more than a mummified corpse.

However, Hitchcock wasn't quite done there. As Vera Miles' protagonist screams her head off in horror, she is confronted with an even more disturbing sight when the figure behind her sister's murder appears in the cellar doorway. It's none other than Bates himself, wearing a dress and a wig to complement his dementedly unhinged smile as he charges towards Lila with a knife.

While Bates is thankfully subdued by John Gavin's Sam Loomis in the nick of time, Pyscho's cellar sequence remains a front-runner for the most seminal WTF moment in the history of the horror genre.