Anne dreamed of meeting Alfred Hitchcock during his visit to Switzerland, but the famous director has already left. Her fiancé, Jean, is completely broke. The young couple then resorts to a scam to pay for their vacation. Anne drops her worthless necklace at the feet of Monsieur Georges, who accidentally steps on it. To make amends, Georges invites her to his room. Anne receives a diamond necklace, but Georges becomes too pushy, and Anne ends up fleeing with the piece of jewelry…Georges then gives chase to Jean and Anne's 2 CV. The two fiancés decide to meet up in Lucerne and split up. Anne gets a lift from Bob, a Dutchman driving a sports car. She tells him that Georges, who is still pursuing her, is a human trafficker. Bob offers to drop Anne off in Rotterdam…