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.

K and Nelson live stifled by a routine-governed city that oppresses their identity. Real and still fragile, K manage to portrait two men in search of truth.

Childhood friends reunite later in life in Spanish tuberculosis sanitorium. Pressures of death all around combine with dark secrets of their past.