At noon on July 30, 2009, a bomb explodes in a Civil Guard car near the port of the island of Mallorca, killing two agents. The police activate the so-called "Operation Cage": no means of transport can enter or leave the island, including private vessels.

The film is a free adaptation of Isaac Asimov story in 1976 wrote "The Riddle", but placing it in 2005. This is a dramatic fictional story that nowadays we consider a bad omen in the world in which we live. A small autonomous region that is about to go bankrupt. A world in economic crisis and securities, overpopulated, and governed by those who will not hesitate to look for its own interests.

In an act of desperation, Danielle locks up her ex-boyfriend Phillip into the basement of her house. Phillip, chained in handcuffs, with no means of escape becomes Danielles prisoner and is forced to a relationship with her.