Murder by Death (1976)
Lionel Twain invites the world's five greatest detectives to a 'dinner and murder'. Included are a blind butler, a deaf-mute maid, screams, spinning rooms, secret passages, false identities and more plot turns and twists than are decently allowed. detective, butler, deaf-mute, guest, parody, murder, spoof, mansion, whodunit, cadaver, one night, sidekick, old mansion