Tesis

Ángela, a university student in Madrid, finds a snuff video while working on her thesis about audiovisual violence and discovers that she was a former student of one of the victims. She enlists the help of her friend Chema to investigate, who recognizes the victim and reveals that she was killed two years ago. As Ángela delves deeper into the case, she encounters a handsome young man named Bosco, who claims to have information about the disappearance. Bosco charms Ángela and her family, but she soon realizes he's a psychopath. Chema warns Ángela about Bosco's true nature, and the two flee from Castro, a professor who is editing snuff videos. As the investigation unfolds, Ángela's sister Sena becomes embroiled in danger, and Ángela must confront Bosco, who turns out to be a serial killer.