Ok, this movie is from the 80's or 90's... perhaps shown on the Ronda Shear's USA Up All Night.. though I won't swear to that. The movie is about a group of girls who go to stay at an old victorian style house that once housed a mom and her sons. the mom who is dead too ( think ) ends up killing off the women the same way her sons had died so they could 'marry' her sons. I remember one scene was an electrocution, light bulb hanging down broke and the girl died that way... It's tough to describe. I think there was like a teacher or something that went there with the girls and there was a caretaker... I wish I had more to give you.