After 25 years, a former hired gun visits his old colleague, now a small-town sheriff. Their past relationship is explored, as is how they reflect on it in the present.

Barcelona, Spain, 1912. The disappearance of a girl from a wealthy family triggers a series of events that will shake the weak foundations of a hypocritical society.

May, 1987. While returning from a nightclub and after having taken drugs, new girl in town Sara and her friend Rebe find a doll wearing a communion dress. From that moment, their lives will become a living hell.

Nao's day-to-day life is guided by MOM, an advanced artificial intelligence capable of adopting an overprotective role in people's daily lives to the point of controlling and manipulating their lives.