The Invisible Man Returns (1940) starring Vincent Price, Nan Grey, Cedric Hardwicke, Cecil Kellaway
The Invisible Man Returns is an excellent movie, due to no small degree to the acting skills of Vincent Price. Vincent Price is Geoffrey Radcliffe, the proverbial “man convicted of a murder that he didn’t commit” — the murder of his own brother. Soon to be executed, he’s given an unexpected last-minute reprieve — but not from the state. He’s visited by Dr. Frank Griffin (John Sutton), the brother of the original Invisible Man, who offers to inject him with the unstable invisibility formula, warning him of the side effect: gradual insanity. Stuck between the devil and the deep blue sea, Vincent Price makes Hobson’s choice — and chooses the injection, hoping to find the actual murderer before he’s driven to insanity. At the same time, Dr. Griffin will try to find an antidote for the invisibility formula.