start off with a college initiation ceremony in a group call the sister where a girl be accidentally kill . then the film cut to seven year later where the remain five sister be call to a reunion in a house in the middle of the desert . they find out too late that the house have the dead girl father ( arthur franz ) and he be determine to punish them for his daughter death . only make to cash in on claudia jennings inexplicable popularity in the 1970s . she be a very beautiful woman but no actress . the plot be by the number and be boring and stupid and full of gap in logic and seriously silly dialogue . if youre watch this for nudity or gore forget it . the film be rat pg there no nudity ( although they come close once ) and there no gore . the killing be a little bloody but that about it . this be also one of those movie where the character act like a bunch of idiot they know theyre trap in a house with a maniac yet the split up in separate room and one decide to take a shower . this be hold back from release for seven year it easy to see why . dull and dreary and stupid . avoid .