Adaptated from the cult graphic novel, Rottentail is the story of geeky fertility researcher Peter Cotton who, when bitten by a mutant rabbit, transforms into a vengeance-seeking half-man/half-bunny. What's a boy to do? Why, take a hippity, hoppity trip home of course! Peter begins a bloody killing spree of revenge that culminates in his childhood hometown of Easter Falls.
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.