The will of Giulio Donati, murdered two months earlier, contains a stunning clause: having discovered that his beautiful wife, Sara, had deceived him, he leaves her his entire fortune on the condition that she humiliate herself by exposing herself to the lust of a large number of unknown men, and on the condition that her forced antics be filmed by her own lover. The tape will subsequently be handed over to a notary for verification. Sara's goal is too lofty: she accepts every condition of the will. Complying with everything at first with great trepidation, then with increasing pleasure, she must also submit to the difficult questions of a police lieutenant, a rival of Colombo, who is investigating her husband's murder. And then she discovers that her lover, Philippe, will deceive her by having fun with seductive call girls...