- Rated: R
- Run Time: 1 hours, 29 minutes
- Video: Color
- Released: January 27, 1999
- Originally Released: 1988
- Label: Troma
- Encoding: Region 0 (Worldwide)
- Packaging: Keep Case
- Aspect Ratio: Full Frame - 1.33
Performers, Cast and Crew:
Two kindly little old ladies turn into flesh-eating, denture-gnashing demons when they open a mysterious package.
A family has gathered for the birthday party of two warm, lovable grandmas. They open a gift from a devil-worshipping relative, the contents of which turn the docile matriarchs into monstrous, flesh-eating creatures! A bloody gore-fest ensues, as the voracious "grandmonsters" begin devouring relatives -- giving new meaning to the term "family dinner"!