Francis Durbridge - Der elegante Dreh(1978)

Overview:

It is nighttime, church bells ring in the distance, and the wind whistles through the trees. A man wearing a coat, hat, and carrying a flashlight sneaks around the house of interior designer Patricia Harrison. The kitchen window is open, allowing the stranger to gain access to the villa. He seems to be looking for something, but is interrupted by Patricia's sudden appearance. The man tries to strangle the woman, but the victim grabs a knife and kills the stranger in self-defense. Although the interior designer repeatedly insists in the following days that she has never seen the man before, evidence mounts that this is not true.