In this month's bonus episode, I'm sharing my five favorite adventures of radio's singing sleuth - Richard Diamond, Private Detective. Dick Powell stars as the gumshoe who's quick with his fists and usually winds up the week's caper by crooning a tune. First, Diamond investigates a case of blackmail and murder in "The Betty Moran Case" (originally aired on NBC on May 29, 1949). Then, a chance visit to a department store tips Diamond off to a murder plot in "Mrs. Baker - Klepto" (originally aired on NBC on September 3, 1949). Diamond winds up knocked out when he tries to deliver ransom money in "The Martha Campbell Kidnap Case" (originally aired on NBC on July 26, 1950). Jim Backus' tailor shop keeps getting robbed in "The Blue Serge Suit" (originally aired on ABC on February 9, 1951). And finally, Diamond tries to save a man who arranged for his own murder in "The Red Rose" (originally aired on ABC on March 1, 1951).