Mad Scientist Caper: The Adventures of Sam Spade (July 25, 1948)

“Mad Scientist Caper” is an episode of The Adventures of Sam Spade, the old-time radio show, first broadcast July 25, 1948. Listen free on Stupid Potato.

Listen to The Adventures of Sam Spade free, live around the clock: every episode, in the order it first aired. No sign-up.

What happens

Sam Spade is hired by Raymond Fox, a wild-eyed inventor claiming someone has stolen his secret formula for Penitron, a revolutionary plastic that shields against atomic radiation. Fox believes Albert Grayson of Grayson Enterprises stole the formula after a brief illness forced Fox from his laboratory, and points to a patent office letter as proof. Spade begins investigating the shabby office and its mysterious employees to uncover the truth.

San Francisco, 1948. Sam Spade's detective office and the offices of Grayson Enterprises.

Characters: Sam Spade, Effie Perine, Raymond Fox, Albert Grayson, Lois, Roscoe Manning, Detective Lieutenant Dundee

Listen for: The mystery of who really stole the Penitron formula and what Grayson Enterprises is actually up to. Sam's investigation into the shady operation and his discoveries at their office.

Written from the episode itself; it never gives away the ending. Every recording is remastered for the stream: cleaned of rumble, hiss and mains hum (and the old TV whine where we found it), then levelled in two passes to steady broadcast loudness, so one show is never quieter than the next.