Insurance executive Charles suspects his wife Hélène of playing the field, so he has a private detective locate his wife's lover, author Victor Pegala.
The mistress of a wealthy man misses material comforts when she leaves him for a younger lover.
One night Alice can't stand her husband anymore and she decides to leave him. It's a dark, rainy night and something smashes the windshield so Alice is forced to seek shelter in an old mansion. She is warmly welcomed but soon realises that strange things are happening. She tries to escape but it seems there's no way out.
