Şeytan is a 1974 Turkish cult horror film, directed by Metin Erksan, featuring Canan Perver as a twelve year-old girl named Gul, living a high society life with her mother in Istambul, who becomes possessed by the Satan himself after experimenting with a Ouija board.
The film, which went on nationwide general release across Turkey on November 1, 1974, is commonly known as Turkish Exorcist because of plot and stylistic similarities copied from William Friedkin’s The Exorcist (1973)
Wikipedia – IMDb
Film Threat review
Cinema Suicide review