Las Garras del Vicio(1990)

Four provincial sisters abandoned as children by their mother, who was a cabaret star and was in vice. At the same time, one of her daughters decides to look for him, finding that the cabaret businessman, a mafia man, promises to help her enter the prostitution environment in order to find her mother. This takes advantage of the need and naivety of the provincial, drugging her to make sexual use of her.