The mysterious murder of a vacuum cleaner salesman is a dilemna for Alan Ladd in Suspense's "Motive for Murder." He plays a detective named "Irish" whose wife, Mary, has just been found passed out alongside a dead salesman. All of the evidence points to Mary, but Irish believes she was framed. He intends to go through the facts one by one to prove her innocence. These are things he knows for sure:
Fact! -- Strangers usually don't kill each other.
The people involved in this scenario had to have known each other. He sets out to find their connection.
Fact! -- The vacuum cleaner salesman had come to do a demonstration, but there was no vacuum cleaner at the murder scene; therefore, someone had killed to get that vacuum cleaner.
If he can figure out who wanted it, he can find the murderer.
Appearing with Alan Ladd were Joseph Kearns as the lieutenant, Howard McNear, John Dehner, Ed Max, Jeannette Nolan, and Lurene Tuttle. "Motive for Murder" was based on the 1948 short story by John and Ward Hawkins and was adapted for radio by E. Jack Neuman. This show aired on March 16, 1950.
The same story had been presented the previous year by Radio City Playhouse. Bernard Grant played David Murphy and Mitzi Gould played Mary. The credits aren't given on the recording but the radio adaptation was probably written by Harry W. Junkin. It aired on June 20, 1949.
(Image of Alan Ladd from classicsavers.com.)