Thelma and Patsy find themselves in a spooky house inhabited by a nut who is a mechanical genius and has made a robot who does everything. The inventor manipulates the robot's control board from a hidden room. The girls are soon in a panic. Patsy gets into an argument with the robot and loses the match of wits. Blackie Burke, an escaped convict, is using the house as a hideout, and this adds to the problems the girls already have.
Thelma Todd
as Thelma Todd
Patsy Kelly
as Patsy Kelly
Matthew Betz
as Blackie Burke
Clarence Wilson
as Mad Scientist
Billy Bletcher
as The Tin Man (voice)
Cy Slocum
as The Tin Man
