Giácomo is an Italian man in his forties who is single, dedicated to earning money in his business. He strikes up a relationship with a Spanish singer, whose brother encourages her to conquer him to take her money.
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.
