I need to know a movie by decription?

There is a movie i watched a while back and its about these hippies living in a house together and someone goes in and murders all of them except the girl and when she got older she solved the mystery and there spirits where trapped in the house and they wouldnt let no one in but that girl and they told her to bring the guy that killed them to them and they ended up killing him what is the name of that movie?