A young factory worker sends out pictures of herself to a beauty contest and hopes to be chosen. In the same place works Fernando, whom the other employees do not like because of his being very arrogant. In revenge, Rosita pretends to love him. Fernando discovers her double game, but also pretends he is not aware.

A thief steals a Jewel in France and travels to Barcelona to try to sell it. Both the Police and a former associate try to catch him.