Watch Curse of the Demon (1958) (1957) HD Full Movie Free on SolarMovie. Watch Curse of the Demon (1958) (1957) online free. American professor John Holden arrives in London for a parapsychology conference, only to find himse...American professor John Holden arrives in London for a parapsychology conference, only to find himself investigating the mysterious actions of Devil-worshiper Julian Karswell.