Niagara

As two couples visit Niagara Falls, tensions between Rose Loomis (Marilyn Monroe) and husband George (Joseph Cotton) reach the level of murder. Polly and Ray Cutler arrive on their delayed honeymoon only to find the Loomises occupying their cabin. Rose draws the attention of every man nearby while George keeps to himself. Polly sees Rose passionately kissing another man. Rose and her lover plot to kill George and escape together, but when events go wrong Polly is kidnapped and races in a boat toward the edge of the falls.