Tesis () is a 1996 Spanish crime horror thriller film. It is the feature debut of director Alejandro Amenábar and was written by Amenabar and Mateo Gil. The film was made while he was studying at the Complutense University in Madrid. The film won seven 1996 Goya Awards including the award for Best Film, Best Original Screenplay and Best Director. It stars Ana Torrent, Fele Martínez and Eduardo Noriega. Plot Ángela, a university student in Madrid, is planning to write a thesis on audiovisual violence and the family. Her commuter train is evacuated after a man commits suicide by jumping in front of the train. While being led out of the station, Ángela moves toward the tracks in an attempt to see the man's remains. At her school, Ángela asks her thesis director, Professor Figueroa, to help her find the most violent films in the school's library, and seeks out a fellow student, Chema, who is known for collecting violent and pornographic videos. While Ángela watches a violent film with Chema, Figueroa finds a tape hidden in the school's audiovisual archives. The next day, Ángela finds Figueroa dead of an apparent asthma attack in the screening room and retrieves the tape. A younger professor, Castro, takes over the supervision of Ángela's thesis project. At Chema's house, Ángela discovers the stolen tape is a snuff film in which a woman is tortured, killed, and disemboweled. Chema recognizes the victim is a student from their university named Vanessa, who went missing two years previously. He is able to determine that the killer used a specific model of Sony camera with a digital zoom feature, and that the film was shot in someone's garage. At the library, Ángela sees a handsome young man named Bosco using the type of camera Chema identified. When she leaves, he pursues and catches up to her. Bosco notices that Ángela has newspaper clippings about Vanessa's disappearance and states that he has information about the case. Ángela pretends she is filming a report about the disappearance and asks to interview Bosco about it. In the interview, Bosco insists that Vanessa must have run away with a boyfriend because she sent a note to her family saying that she was in love. Ángela is willing to accept Bosco's innocence, but Chema tells her that he is a psychopath. Once home, Ángela realizes that Bosco is inside the house waiting