Nove Ospiti Per Un Delitto (1977)

aka's: Nine Guests For A Crime/Nove Ospiti Per Un Delitto (La Morte Viene Dal Passato)/Un Urlo Nella Notte

While vacationing on a remote Mediterranean Island a group of nine guests from bourgeois family are stalked and killed one by one by a mysterious killer. Stars Sofia Dionisio, Massimo Foschi and Dana Ghia. Also with Arthur Kennedy. (In Italian language, with English subtitles).

Comes from a widescreen German import print.