Sin City Ultra presents a deranged tale of the twisted, the bizarre, and sexually dysfunctional heir to the infamous Wankenstein legacy – William (the wanker) Wankenstein. When informed of his ill-found fortune, Wild Willy makes a beeline to eastern Europe to claim his sleazy inheritance. From the eerie, overgrown, semi-human sex machine, Mel, to the sex starved degenerate housekeeper, Frau Sthupper, to Egon, the hunchbacked servant, to the hell on heels milkmaid, Inga, William is sucked into a vortex of unearthly perversion as the castle walls rock and roll with the moans and groans of the sexually twisted outcasts who inhabit Der Castle Wankenstein.