Diego Montes (Nacho Martínez) is a former bullfighter who was forced into early retirement after being . He finds sexual gratification by viewing slasher films. Among the students in his bullfighting class is Ángel, a diffident young man who suffers from vertigo. During one episode of vertigo in the practice ring, Ángel has a vision of a woman killing a man with a hairpin during sex, in a manner similar to how a matador kills a bull. After class, Diego asks Ángel if he is homosexual, noting that he is not experienced with women. Ángel says he is not and vows to prove himself. Later that day, Ángel attempts to rape his neighbour Eva (Eva Cobo), who is also Diego's girlfriend. As she leaves him, she trips in the mud and gashes her cheek. At the sight of her blood, Ángel faints.