A delinquent, the son of a police commissioner, leaves prison to seduce someone who should be like a sister to him: a girl raised and loved by his parents. To force her to give in to his obsession, he kidnaps her little daughter.
A rich lady is suddenly in the street after her father's suicide and moves to a pension with many working women from different origins whom she had previously humiliated.
The employee of a boarding house raises the daughter of a single mother and loves her so much that she kidnaps the girl and goes to jail.
