Box 13 was a syndicated radio series about the escapades of newspaperman-turned-mystery novelist
Dan Holliday, played by film star Alan Ladd. Created by Ladd's company, Mayfair Productions, Box 13 premiered on December 31, 1947,
over Mutual's New York flagship, WOR. To seek out new ideas for his fiction, Holliday ran a classified ad in the Star-Times newspaper
where he formerly worked: "Adventure wanted, will go anywhere, do anything -- write Box 13, Star-Times". The stories followed Holliday's
adventures when he responded to the letters sent to him by such people as a psycho killer and various victims.