Blue, White, and Perfect

In order to win back his girlfriend, Mike Shayne promises to give up his detective practice and get a job as riveter in an aircraft plant. He quickly finds himself investigating the theft of industrial diamonds from the plant's safe and, utilizing a variety of false identities, traces them first to a dress factory and later to a Hawaii-bound ocean liner. Escaping several attempts on his life, he is able to uncover a Nazi smuggling ring, but the location of the missing diamonds continues to elude him.

• 
  Herbert I. Leeds

• 
  Lloyd Nolan
  Michael Shayne
• 
  Mary Beth Hughes
  Merle Garland
• 
  George Reeves
  Juan Arturo O'Hara
• 
  Helene Reynolds
  Helen Shaw
• 
  Steven Geray
  Vanderhoefen
• 
  Henry Victor
  Rudolf Hagerman
• 
  Curt Bois
  Friedrich Gerber, alias Nappy Dubois
• 
  Marie Blake
  Ethel
• 
  Emmett Vogan
  Charlie
• 
  Mae Marsh
  Mrs. Bertha Toby
• 
  Frank Orth
  Mr. Toby
• 
  Ivan Lebedeff
  Alexis Fournier
• 
  Wade Boteler
  Judge
• 
  Charles Trowbridge
  Capt. Brown
• 
  Edward Earle
  First Officer Richards
• 
  Cliff Clark
  Inspector Peterson
• 
  Arthur Loft
  Joseph P. McCordy
• 
  Ann Doran
  Miss Hoffman
• 
  Charles Williams
  Theodore H. Sherman Jr.- Printer
• 
  Monica Bannister
  Clerk (uncredited)