This might be a long shot but...I was round a friend's house a few years ago and caught a few minutes of a horror film which looked really creepy before she changed the channel because she was too scared! I really can't remember too much about it as i had a lot to drink that night! It could of been black & white?! It was set in a dark old house with a group of young people and it had a nasty winged creature/demon with really sharp teeth that was roaming around pouncing on them one by one everytime they split up. The last bit i remember was a character saying something along the lines of 'There's something not right about the house' or 'There's something in the house'. I've been trying to find the name of this film for years, but no joy. If anyone can help me or knows somebody else who may know, it would be greatly appreciated. Thanks!