After being shown what hypnotism can do, a doctor starts to study it in depth. When he experiments on a friend's wife, she regresses into an early life, that of Bridey Murphy.

Rich Sadie Patch is marooned on a desert island after an emergency on her cruise-ship. With her are Irish stoker Pat, prickly young Jimmy Carrol, and bald and bookish Professor Gibble. All fancy their chances.

A man hypnotizes a young woman into being an opera singer.