When the body of Jackie Lefranc, former "Queen of the Night in Hauts-de-France," owner of numerous nightclubs, is found in the park of her sumptuous estate, suspicions quickly fall on her only daughter, Aurore, who has returned after thirty years of absence. Could she have come back to seek revenge on a mother with whom she shares a heavy secret? Our investigators, brother and sister, now living together, continue their bantering dialogue. However, their relationship becomes more tender, more emotional, and they no longer hesitate to confide in each other.
—Mercer Productions