Gaetano Russo

An hour before he's due to return to the surface after spending a month alone in an underground cavern (deep below the ruins of an ancient church), a 'scientist' flips out and runs about screaming. In response, his 'scientist' surface buddies decide to launch a rescue attempt and venture down into the caves to discover plastic skeletons, evil light bulbs, pet rats, a smoke machine, wobbly tombstones, 7 killer ghost/monk/spirits and eventually........ the doorway to hell itself. (lurple.com)

Returning home after a round the world trip, Ileana telephones her elderly, wheelchair-bound father, the Baron de Chablais, to let him know she is safe and is also bringing some friends with her to the family villa. Before he can voice his opinion on the matter, father is surprised by the bloody handed figure who has been creeping through the chambers and passageways of the place... (giallo-fever.blogspot.com)

This film is basically about nine people who attend a showing at a mysteriously deserted theater and find themselves trapped inside and picked off one-by-one by a mysterious masked killer

A lone cop struggles to protect a female photographer from a gang of psychopathic bikers. (imdb)

Sort of loose remake of the late director Mario Bava's "Lisa And The Devil" about a group of witches who lure strangers into a haunted house to sacrifice. (imdb)

A group of people spend a weekend at a remote villa. Soon, one by one, they are picked off by a homicidal maniac. (imdb)

A farming community make their money through kidnapping children and selling their vital organs on the black market.