Test Tube Murders, Part 4

Nick Carter, Master Detective is a Mutual radio crime drama based on tales of the fictional private detective Nick Carter from Street & Smith's dime novels and pulp magazines. Nick Carter first came to radio as The Return of Nick Carter, a reference to the character's pulp origins, but the title was soon changed to Nick Carter, Master Detective. A veteran radio dramatist, Ferrin Fraser, wrote many of the scripts.

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“Test Tube Murders, Part 4.” Nick Carter Master Detective. Radio broadcast, June 2, 1944.