Malevolent

Angela and Jackson run a scam on clients to convince them that they'd driven out spirits. Jackson, desperate for money to pay off a loan shark, agrees to quiet the screaming of the girls at the house. The girls, three nieces of Mrs. Green, were killed by her son Herman, their mouths sewn shut and placed in a circle.

After attempting to scam Mrs Green, she bluntly informs Jackson that they've failed. Angela sees a spirit of one of the girls and attempts to follow it into the disused East Wing, where the floor collapses, trapping Elliot, the cameraman. During this, Beth goes missing. Read more on Wikipedia.