What is the name of the movie DVD?

Name of movie dvd I watched about 4 years ago?

• So a few years go, sometime in 2007 (I think) I rented this DVD and I forgot the name. All I remember is that it was about a couple whose son just died. They meet the main character who apparently looks exactly like their own son who died and want to go to know him, etc. He gets injured (or they injure him) so the couple can spend time with him and nurse him back to health (?) They are mentally ill and slowly get convinced that he is actually their own son. Sometime near the end, they bury the guy alive and in the end, his girlfriend (?) hears him screaming and digs him out. Does any of this sound familiar? Just post up anything movie you think could be it. Thanks! Oh, also, the dvd cover shows the guy underground in a coffin or something, I think. I can't remember that well.

• Answer:

  Buried Alive? Maybe....i havent seen the movie in fooorever but thats the only movie i can think of. Sorry! :(