Sisters Of Death is a 1976 murder mystery, presumably in the vein of And Then There Were None, but with more artifacts of The '70s.
Judy, Sylvia, Diana, Francy and Penny are sorority sisters who witnessed the death of sorority pledge Liz during a hazing ritual gone horribly wrong. Seven year later, they are reunited via mysterious invitations for an all-expenses paid weekend getaway. The invites were sent by Edmund Clyburn - the father of Liz, the dead girl. He's convinced her death was no accident and wants the one responsible to confess and face his justice. The girls, along with Mark and Joe (the two men hired to bring the girls to Clyburn's home) must withstand Clyburn's wrath and the fact that one of them may be a murderer. A fact which someone is willing to kill the rest to keep a secret.
Currently available as a RiffTrax Video on Demand download.
This film contains examples of the following tropes:
- Angry Guard Dog: Clyburn has one as part of his arsenal.
- Animal Assassin: The murderer uses both a tarantula (which fails, except as a distraction), and a rattlesnake, which succeeds.
- Artistic Licence – Gun Safety: If you're not able to tell the difference between a live round and a blank, you probably shouldn't be playing around with a gun, especially not pointing them at people's heads at point blank range. That, and blanks are absolutely not harmless at that kind of range anyway.
- Artistic License – Law: Apparently, no one saw jail time for Liz's death (which was basically a game of Russian Roulette).
- Deadly Prank: The film opens with an Initiation Ceremony that turns fatal when the derringer being used turns out to be a Not-So-Fake Prop Weapon.
- Dirty Old Man: The Mexican who picks up Diana when she is hitchhiking. He tries feeling her up, but laughs good-naturedly when she rebuffs his advances.
- Freeze-Frame Ending: The film ends with a freeze frame shot of Judy laughing after she and Mark have cleared the gate and escaped the mansion. And she has just shot Mark.
- Gatling Good: Clyburn uses a Gatling gun loaded with a mix of live and blank rounds to intimidate Judy.
- High-Voltage Death: Joe dies when the Angry Guard Dog chases him into the high-voltage electric fence.
- Initiation Ceremony: Liz dies during the initiation ceremony into the Society of Sisters.
- It's All About Me: According to Sylvia, she's the real victim here, not the dead women or Liz (whom she literally pulled the trigger on.)
- Madness Mantra: When Penny snaps on learning they are trapped and probably all going to die, she starts chanting a meditation mantra while scrawling in the dirt. She then becomes the first one to be murdered.
- The Mole: The girls are told up front that one of them is working with Clyburn. It's Sylvia.
- Not-So-Fake Prop Weapon: The murderer swaps the dummy bullet used in the initiation ritual for a live round.
- Reunion Revenge: A group of former college students who belonged to a sorority called 'The Society of Sisters' are sent invitations to a reunion, including money for travel expenses. When they arrive, they find themselves on the estate of a man called Clyburn, whose daughter Liz died in an Initiation Ceremony gone wrong. He accuses the group of murder and wants the guilty party to confess. And then the murders start...
- Shear Menace: Francie is stabbed in the back with a pair of scissors.
- Shower Scene: In a Too Dumb to Live moment, Francie decides the best thing to do while trapped in hacienda with someone who is trying to kill you is to take a shower.
- Show Some Leg: Diana does this to flag down a ride while hitchhiking.
- Sinister Sorority Sisters: The sorority has witnessed the accidental death of a girl during a hazing ritual gone wrong, and one of the sisters, Judy is revealed to be the real killer hunting them down.
- Ten Little Murder Victims: One of the sisters switched the blank for the live round that killed Liz. Clyburn wants her to confess. Subverted in that Clyburn isn't the killer - Judy is. Clyburn only kills Sylvia and that was by accident.
- Those Two Guys: Mark and Joe.
- Too Dumb to Live: The girls all respond to a summons from an unknown source, accept transport from two strange men to an isolated destination, and when they start getting killed off, continue to keep themselves separate and isolated.
