Lemming

Alain Getty, a brilliant young engineer, and his wife Bénédicte invite Alain's boss Richard and his wife Alice to dinner. The evening doesn’t go smoothly—Alice behaves strangely and finally she and Richard leave the house abruptly.

The next day, Alice goes to Alain and tells him her husband tried to have her murdered and that she would like him dead. She attempts to seduce Alain, who eventually resists. Alice then goes to Bénédicte to apologize for her behavior at dinner, but also tell her what happened between her and Alain. What happens in the next few hours changes all of their lives.