The Italians are often criticized for "ripping off" American films. There is some justification for this, but there are times also that the influence has gone in the other direction. The American slasher genre initiated by "Black Christmas", "Halloween", and "Friday the 13th", for instance, owes a lot to earlier Italian gialli thrillers, most obviously Mario Bava's "Bay of Blood", but also "Torso", "What Have You Done to Solange?", and even "Schoolgirl Killer", all of which played American drive-ins in the 1970's and no doubt had some influence on the early American slasher films. Nevertheless, just because "Halloween" and other early slasher films may have been somewhat derivative of gialli, it didn't stop later Italian giallo filmmakers from cashing in on the international success of American slasher movies by making their own films that were highly derivative of "Halloween". This is one such film.
In what seems to be a typical slasher-movie flashback prologue, one boy coaxes another boy with a deformed eye into climbing a tree. The boy falls out of the tree, apparently dead. Years later the first boy has grown up and he and a bunch of his friends, some of whom he is in debt to, and his wealthy wife are having a party at his secluded villa when someone starts bumping off the guests. Guess who.
This movie IS highly derivative of "Halloween", but the end does go in a very direction than what you might expect and the revenge-for-a-past-tragedy that is seemingly set up in the prologue is not necessarily what it seems. This movie turns out to be much more of a slasher-giallo hybrid than a simple slasher movie rip-off, owing as much to earlier gialli like "Bay of Blood" as it does to "Halloween". Also, the characters in this movie, unlike with most slasher movies, are adults rather than adolescents. Thus, there's even more nudity and sleazy sex than in your average slasher movie, but the characters also have much more adult motives than simply partying or trying to "lose it". You also get the big fat guy from "Strip Nude for Your Killer" (but thankfully this time he DOESN'T strip nude for his killer). Most of the cast, however, are relative unknowns and they're generally unremarkable as actors. This isn't terrible, but it's not great either.
