Marsha Mitchell, a traveling dress model, stops in a southern town to see her sister who has married a Ku Klux Klansman. Marsha sees the KKK commit a murder and helps District Attorney Burt Rainey in bringing the criminals to justice.
A girl has been murdered. A woman cannot remember a man who claims to be her husband. Her uncle hosts a radio murder mystery show called "The Unsuspected". Who killed the girl? Why? And who is this mystery husband?