Hell House LLC (2015)

IMDB
Genre : Horror, Mystery
TRAILER
Director : Stephen Cognetti
Stars : Gore Abrams, Alice Bahlke, Danny Bellini, Theodore Bouloukos
Plot : Five years after an unexplained malfunction causes the death of 15 tour-goers and staff on the opening night of a Halloween haunted house tour, a documentary crew travels back to the scene of the tragedy to find out what really happened.