Libby Parsons, wrongly convicted for her husband Nick's murder, thinks he is still alive and wants to settle the score and find their son. As she has been tried for the crime, she cannot be re-prosecuted if she finds and kills Nick.

Ambulance driver Frank Jessup is ensnared in the schemes of the sensuous but dangerous Diane Tremayne.

A scrupulously honest lawyer discovers that the client he's gotten off was really guilty.