House on the Edge of the Park (1980)

When two low-lives gate crash a party, and are mocked by the posh hosts, they decide to get their revenge by subjecting the guests to various forms of torture and violence.

Directed by: Ruggero Deodato

Starring: David Hess, Annie Belle, Giovanni Lombardo Radice, Lorraine De Selle, Christian Borromeo, Marie Claude Joseph

Links: IMDb, Movie posters, Movie stills