Mr. Harvey is a casino tycoon who takes María, a young singer on the verge of resorting to prostitution, under his wing and trains her to ensnare his rival Larry Elliot. His revenge plans unravel when María and Larry truly fall in love.

Mr. Harvey is 48 years old and owns 12 casinos. When he decides to take revenge on Larry Elliot, he plans a meticulous warfare strategy. After two years of surveillance, it's not difficult to convince Larry's four latest mistresses to spend time in Mr. Harvey's mansion and give him all the intel about Larry's most private tastes. From there, Harvey searches for the perfect woman to fit into his plan. Among thousands, he chooses a young girl named María who has never had intimate relations with any man, despite making her living as a showgirl in the Red Cabaret, a third-rate music hall.