The doctors are in with these four old time radio mysteries. A doctor hires Dick Powell and then jumps out of the window in Richard Diamond, Private Detective (originally aired on NBC on August 23, 1950). Joe Friday is on the trail of a phony physician in "The Big Quack" from Dragnet (originally aired on NBC on October 12, 1950). A crooked doctor sets up fake accidents in "No Insurance" from The FBI in Peace and War (AFRS rebroadcast from November 22, 1951). And Frank Sinatra comes to the aid of a doctor with a dilemma close to home in "Honor Among Thieves" from Rocky Fortune (originally aired on NBC on March 2, 1954).