during an initiation ceremony and a girl be accidentally shot to death . at least it appear to be an accident . her father doesn not think so . seven year later and he send anonymous invitation to the other girl to gather for a reunion . his plan be to find the girl responsible for his daughter murder and kill her . if some of the other girl die along the way and it of no concern to him . sister of death be a typical low budget horror film from the 70 . i have read that it be actually make in 1972 ( . ) and but not release until 1978. i do not know why and just think it be an interesting fact . bad acting and a ridiculous plot be the highlight . there be several example i could mention a problem within this movie . but and i will just note two small scene that leave me scratch my head . 1. the girl know that there be a madman loose in the house . they have even meet him . yet and when it come time to get some sleep and they all go to their separate bedroom . if you know someone in the house want to kill you and wouldn not you want to remain a a group . 2. toward the end of the movie and a dog suddenly come bolt out of the house and attack one of the guy in the group . where do this dog come from . do he suddenly materialize out of thin air . and and after he push the guy into the electric fence and where do the dog go and why doesn not he attack anyone else . these be just two of the mystery of life . sister of death feature joe e. tata who and i understand and appear on beverly hill 90210 .