The wealthy lawyer Dick Russell (John Howard (American actor)) funds the dotty old inventor Professor Gibbs (John Barrymore) to create an invisibility device. The first test subject for this machine is Kitty Carroll (Virginia Bruce), a department store model who had been fired from her previous job. The machine proves quite successful, and Kitty uses her invisible state to pay back her sadistic former boss, Mr. Growley (Charles Lane (actor)).