A singer is trapped in France by the unforeseen outbreak of World War II and a man who serves the German occupiers demands, in exchange for safe conduct for herself and her daughter, to act as a spy and informer for members of the Resistance.
The protagonist commits a crime and abandons his brother, on whom the shadow of suspicion falls, to avoid punishment. In his escape he meets for the first time the emotion of a true love, but fatality takes it upon himself, pushing him back onto the criminal path.