

Nice, 1970s. Renée Le Roux runs Le Palais de la Méditerranée, the jewel of French casinos, with an iron fist. But the establishment is taking on water, ruined by poor management and assailed by competition.

Renée Le Roux is now the new manager of the Palais. But when she refused to appoint him general manager, Maurice Agnelet promised revenge. He then seduces his daughter Agnès, whom he knows is madly in love with him.