I saw this movie years ago, well like 4 years ago. It came out on TV, it was a thriller kind of film, and all I remember was that there was two couples, and there's a house that everybody is scared to go into because there's a legend that there is a beast in there, they go in and explore the house with their gf's and one couple starts having sex. The other girl doesn't want to have sex with her boyfriend and then the beast decapitates him, and his head falls on the bed where the other couple was having sex. There's another guy who's really smart and starts reading books from the house's library. He goes into a cemetery that's right next to the house, he enters a grave and the beast goes into it. O.o I don't know help! I want to watch it again!