Antonio, a young man with a modest job in a small town, leads a monotonous existence until he is transferred to Barcelona to work in an architecture studio. From that moment, a new life opens before his eyes. He befriends Lorenzo, one of his classmates. Lorenzo is more experienced than Antonio and shows him a new, more sophisticated life in which Antonio feels out of place. Also, Antonio falls in love with Lorenzo's sister.
Martin and Antoine, two French criminals, team up with Román and El Picas, a friend of the latter, to commit robberies in Barcelona, but things do not turn out as expected.
Father Barrera, a newly ordained priest, returns from Rome to join the national forces as a military chaplain. The horrors of war produce in him a commotion so great that panic dominates him and he is not able to overcome it. After spending some time on the front line, they send him to the rear. There, his superior, Captain Estrada, meets Cristina, a young nurse.