Barrie Craig -- Microfilm in the Fishtank

From October 24, 1951, one of the very first episodes of NBC's Barrie Craig, Confidential Investigator. William Gargan stars as the smooth Madison Avenue private eye called in when a protection racket burns a tailor shop to the ground. The trail leads to a humble goldfish bowl -- and a roll of microfilm worth killing for. Cool, witty, early-fifties Manhattan detective fiction with brains over fists.