A picture-perfect bride and groom: Paul (Francois Cluzet) is charming and handsome and Nelly (Emmanuelle Beart) is a beautiful, devoted and carefree. Both are madly in love and work hard to make their Eden-like lakeside hotel a success.
Unfortunately, Paul can't shake his nagging feeling that Nelly is having an affair with local mechanic. Little by little, Paul's jealousy grows to insane proportions as he is eventually plunged into an unfathomable purgatory of doubt and dementia. Working from a script by master French director Henri-Georges Clouzot (Les Diaboliques), Chabrol presents a gripping thriller of pathological jealousy and madness.