Joshua is a young filmmaker who moved to Madrid to fulfill a dream: shooting his first film. It has been proposed to document his experience in the capital with a camera that brings. However, to settle into his new apartment starts recording something else, when you listen to a violent neighbor who beats his wife and he suspects is hiding something very dark.

Sara, the daughter of Oliver and Julia suddenly disappears. Days pass by without any news about the girl. But one morning, the family receives a letter from someone who claims to have retained Sara and wants to talk with them that night.