A prostitute looking for clients interested in Dante in museums. In "Plou a Barcelona", fragile, dark triangle that make up the three protagonists (a prostitute, her pimp partner and one of its customers) whose background is particularly close, so characteristic of Raval in Barcelona, ​​between the signs of the hidden city, the globalization of consumerism and the world of high culture.

Arián, a young Basque girl, idealistic but naive, joins a ruthless terrorist gang and, hoping to prove her commitment, volunteers to participate in the kidnapping of the daughter of an important businessman.

Mauricio is serving time for his political ideals in Barcelona in the 1950s. The only contact he maintains with the outside world are the letters he writes to his partner Helena. These letters are written on the skin of fellow prisoners who are released. One day the messenger who leaves prison has nothing written on his skin. That is the day of Mauricio's execution.

Veronica, recently divorced with a son, begins to organize her life and adapt to the new situation. Her problems are soon relegated to the back ground when Carlos, her masseuse, is murdered. Knowing himself in danger, Carlos left a final message on her answering machine: she had to retrieve a package hidden in a railway station toilet. From that moment, Veronica will not know peace.