Randy Oppenheimer

In ancient Egypt, Isis and Osiris ruled the land. All were happy for the couple except one, Set, a jealous man who killed Osiris in order to take over his kingdom. Isis snuck into Osiris' tomb and tried to raise him from the dead using her black magic. Set caught Isis in the act and had Osiris cut to pieces, with each piece buried in a different part of the land, so Isis could never again raise her husband.

Peter Cotton, a scientist that works on rabbits and infertility, learns that the military wishes to use his work to create superhuman soldiers. Cotton is bitten by an experimental mutant rabbit and changes into the evil Rottentail. (imdb)