The Old Dark House (1932)

The Old Dark House (1932) is an American comedy horror film directed by James Whale and starring Boris Karloff. The film is based on the 1927 novel Benighted by J. B. Priestley. Seeking shelter from a pounding rainstorm in a remote region of Wales, several travellers are admitted to a gloomy, foreboding mansion belonging to the extremely strange Femm family. Trying to make the best of it, the guests must deal with their sepulchral host, Horace Femm, who claims to be on the run from the police, and his religious, obsessive, malevolent sister, Rebecca.
Things get worse as the brutish mute butler, Morgan, gets drunk, runs amok, threatens Margaret Waverton and releases the long pent-up brother, Saul, a psychotic fantasist and pyromaniac who gleefully tries to destroy the residence by setting it on fire. (Wikipedia)