**_A Mansion in the Darkness_** A dozen miles from Milan in the mountains of northern Italy, six people have to spend the night in a creepy mansion by a cemetery. The owner of the manor shares spooky tales of vampires and ghosts, including the aged matriarch of the mansion and her lumbering chauffeur. A Spanish/Italian production, “Murder Mansion” (1972) was originally titled “The Mansion in the Fog” (translated from Spanish). It’s a mystery/horror and could be classified as a giallo. It’s similar to “The Devil’s Nightmare” and “The Night Evelyn Came Out of the Grave” from the year prior,…