The Invisible Man Returns is a 1940 American horror science fiction film directed by Joe May. The film stars Cedric Hardwicke, Vincent Price, Nan Grey and John Sutton. The film is a sequel to the 1933 film The Invisible Man, and the second film in the Invisible Man film series, loosely based on the novel by H. G. Wells. The film is about Sir Geoffrey Radcliffe (Price) who is condemned for a murder he did not commit, which leads to him begging Dr. Frank Griffin (Sutton) to inject him with the invisibility serum despite Griffin's warning that the serum will drive him mad.