A Tyrolean mountain guide comes under suspicion of killing a tourist.
Fresh out of prison a small-time crook finds his girlfriend's dropped him, which sends him into a murderous rage.
The titular Marie-Louise is a young French lass who is evacuated to Switzerland when her country is overrun by the Nazis. Suffering a nervous breakdown, she is given comfort and shelter by a wealthy family. Unfortunately, living in the lap of luxury makes Marie-Louise hesitant to return home to her mother and war torn home. Eventually the girl comes to her senses, but it isn't easy.
