Breezy isn't your ordinary hitch-hiker: she's sexy, fun... and a cold-blooded killer. As deadly as a viper, Breezy murders her victims with a poisonous ring. As she preys on highway pickups, Breezy moves from town to town, finally settling briefly as a boarder in the house of a young couple who have no idea what kind of sexual wolf they've just let in the door.
Irene Wagner, the wife of the prominent German scientist Professor Albert Wagner, had been having an affair with Erich Baumann. She does not disclose this to her husband, hoping to preserve his innocence and their "perfect marriage". This fills her with anxiety and guilt. However, Johanna Schultze, Erich's jealous ex-girlfriend, learns about the affair and begins to blackmail Irene, turning Irene's psychological torture into a harsh reality.
After finding a ring in her car, a girl gets chased by a thing we cannot see.
