The Invisible Man Returns

The Invisible Man Returns is a 1940 American horror science fiction film from Universal. It was written as a sequel to the 1933 film The Invisible Man, which was based on the novel The Invisible Man by H. G. Wells. The studio had signed a multipicture contract with Wells, and they were hoping that this film would do as well as the first. It would be followed by the comedic The Invisible Woman later the same year.

Sir Geoffrey Radcliffe Vincent Price is sentenced to death for the murder of his brother Michael, a crime he did not commit. Dr. Frank Griffin, the brother of the original invisible man named John instead of Jack, injects the prisoner with an invisibility drug. As Radcliffes execution nears, he suddenly vanishes from his cell. Detective Sampson Cecil Kellaway from the Scotland Yard guesses the truth while Radcliffe searches for the real murderer before the drug causes him to go insane.The Radcliffe family owns a mining operation. The recently promoted employee Willie Spears Alan Napier is promoted within the company, stirring Radcliffes suspicions. After forcing Spears car off the road, Spears is scared into revealing that Richard Cobb Sir Cedric Hardwicke, Radcliffes cousin, is the murderer. After a confrontation, a chase scene ensues during which Radcliffe is struck by a bullet from Sampson. Cobb is killed falling from a coal wagon, but not before confessing to the murder. ........

Source: Wikipedia