Monica is a beggar who lives in poverty in a shack with her stepfather, an alcoholic rude who sexually abuses her. She spends his days asking for alms and in the evening she returns home. By chance, one day she is noticed on the street and adopted by a rich, bored and perverse couple, Marco and Irene. Her the transformation begins and from a miserable condition of life passes to the most unbridled luxury, but the new style of life completely changes its character and her heart becomes "stone". She spends time in sophisticated love games with her new acquaintances. She is accepted in high society. All dreams have come true. True, but there is always a price to pay for happiness.