Barcelona, lament

A young man named Pau Arrese, maintaining a relationship, somewhat deteriorated, with a girl (Gloria), seen as the reins of his life escape him, when, after a series of unfortunate incidents, ends up in jail. Inside prison, he become sortta friend a with David Velasco, a guy who lives on odd jobs done for a certain mobster. After being released, Pau will be involved in some rackets, with David and other gangsters, that will lead him to the lowest point of his existence.