A woman in early 1800s England is about to marry a man who begins to reveal a side to himself that disturbs her. For one thing, he reveals just days before their weeding that he was married once before, to a woman who died young and was unfaithful. Also, in his study, the bride to be finds a petticoat that clearly belonged to the first missus, and he lies about it. She also discovers he has a thing for pain and suffering, and in fact had his first wife's lover hanged. Then she makes the worst discovery of all. Michael Rennie is the evil groom. For the early 1960s, the period feel is pretty good. The ending is a real shocker.