A diplomat hires Diamond to find his missing fiancé, a nightclub singer who has vanished into thin air.
A night club owner removes a picture of his featured singer from a billboard and burns it, while a thug tells the piano player to forget that she ever existed. A man then hires Richard Diamond to find this singer. He had been writing her every week but the most recent letter was "returned to sender." She's his fiancee, she's missing and he's worried about her.