The cast and crew of a paranormal reality show spend their first night at a haunted location; it starts with vague apparitions that quickly turn into violent hauntings and, one-by-one, people begin dying.
Dirtylogy
It's funny, it's tense, it features two great performances from two actors and the director expertly creates a web of odd tension where you actually don't know what is happening for the majority of the run time.