In the Spanish countryside, a middle-aged man named Héctor (Karra Elejalde) and his wife Clara (Candela Fernández) live in a home that they are renovating. Héctor scans the forest behind their house with binoculars and sees a young woman take off her T-shirt, exposing her breasts. When his wife goes shopping, he investigates and finds the woman on the ground, naked and unconscious. He is then stabbed in the arm by a mysterious man with pink bandages on his face. Fleeing and breaking into a mysterious nearby building, Héctor contacts a scientist (Nacho Vigalondo) by walkie-talkie, who warns him of the bandaged man and guides him to his location, promising safety. The scientist convinces Héctor to hide from the bandaged man, who is just outside, in a large mechanical device. However, when he leaves the machine, Héctor discovers that he has traveled approximately an hour back in time.