A young artist plots "the perfect murder" in order to inherit his wealthy uncle's fortune.

Because she dials the wrong number, an old lady hears information which enables the police to solve a robbery and murder.

A young woman sets out to get revenge against a rich man who murdered her lover.

Eight people at a remote Scottish inn find themselves confronted by a woman from Mars, who has landed her flying saucer for repairs but intends to soon conquer the Earth and enslave its men for breeding purposes.