L'Oeil du Malin (1962)

Synopsis
In this French drama, a struggling writer is taken in by a successful author and his wife who allow him to use their Bavarian chateau so he can write his stories about Germany. The young writer is a bitter man, jealous of the couple's happiness. He decides he will destroy it, so when the older writer goes off on a business trip, the young man tries to seduce his wife. She rejects him. The conniving young man then learns that she has a lover. He ends up taking a picture of the couple illicitly holding hands. The older man returns and the younger one confronts him with the damning photos. The husband flies into a jealous rage and stabs his wife; he then calls the cops. The young writer suddenly feels great guilt, but despite his attempts to publicly take responsibility for the crime, no one listens, no one cares. ~ Sandra Brennan, All Movie Guide