BACK IN '47, A GUN WAS A ROSCOE, A PRIVATE-EYE WAS A PEEPER, AND MURDER WAS OKAY AS LONG AS NOBODY GOT HURT. IN FACT, ANYTHING WAS OKAY WITH THIS PEEPER ON THE CASE BECAUSE HE WOULDN'T KNOW WHO-DONE-IT EVEN IF HE DONE IT HIMSELF.
A detective is hired to locate a girl adopted 30 years earlier whose birth father wants to bequeath her his fortune.