Alan Ladd broke out on screen with his performance as a professional killer in This Gun for Hire. He'd go on to find success on screen in noir dramas and westerns and on radio as mystery writer turned amateur sleuth Dan Holiday in Box 13. We'll hear a Lux Radio Theatre recreation of This Gun for Hire (originally aired on CBS on January 25, 1943). Plus, Dan Holiday takes a sea voyage with a killer in "One of These Four" from Box 13.