The House of Seven Corpses (1974)

A director is filming on location in a house where seven murders were committed. The caretaker warns them not to mess with things they do not understand (the murders were occult related), but the director wants to be as authentic as possible and has his cast re-enact rituals that took place in the house thus summoning a ghoul from the nearby cemetery to bump the whole film crew off one by one.

The House of Seven Corpses is a horror movie featuring John Ireland and directed by Paul Harrison.

The House of Seven Corpses is currently streaming for free (ad-supported) on Cineverse, Plex, Plex Player, The Roku Channel, Tubi TV and VUDU Free and it's also available on Fandor, Fandor Amazon Channel, Midnight Pulp, Screambox and Screambox Amazon Channel.

It is also possible to buy The House of Seven Corpses on Amazon Video and Vudu.