The Witness Vanishes is a 1939 American mystery film directed by Otis Garrett and starring Edmund Lowe, Wendy Barrie, and Bruce Lester.

In 1937, Universal Pictures made a deal with Crime Club, who were publishers of whodunnits.

[2] Over the next few years Universal released several mystery films in the series.

[3][4]The film was inspired by James Ronald's magazine serial They Can't Hang Me!

[4] The Witness Vanishes was released by Universal Pictures on September 22, 1939.