Tina, an old lady, is in town for the wedding of her grandson when a medallion left to her by her late husband disappears. Dissatisfied with the police effort to find it, she sets on the tracks of the thieves herself.

Francois Roques, a power-and-money-mad editor of a Paris newspaper invites four women to a housewarming at his penthouse apartment. He plans on one of them to meet death by means of a loose railing on the balcony.