Spanish thriller. The film follows Ana (Ona Casamiquela), a fine arts student who needs to find a job to fund her post-graduation trip. Having been denied help from her mother, Ana responds to an ad looking for a live-in nanny and is invited for an interview. When she arrives at the house, Ana meets Diamantina (Luisa Gavasa), the mother of the child, and before long, she is being held captive and forced into becoming a living plaything for Diamantina's much older than expected daughter Elisa (Ana Turpin). Meanwhile, Ana's boyfriend asks the police for help when he realises she's gone missing. Will Ana make it out of the house alive?