The heart-stopping score to Alfred Hitchcock’s “Psycho,” including the screeching music to the film’s famous shower scene, is being put up for sale, British auction house Bonhams said Tuesday.

The 20-page manuscript is among a collection of composer Bernard Herrmann’s works and books being auctioned off on March 24.

The score, about half of which was written in black ink on Ricordi music paper, carries the notes to the slashing, shrieking violin sounds that play when a knife-wielding killer bursts in on actress Janet Leigh as she showers in the Bates Motel.