Undead bikies, Satanic butlers, magic frogs and a wildly erotic and campy tale that pits a baby-faced Hugh Grant and Peter Capaldi against an ancient vampiric snake goddess. What more could you want from a cult folk-horror double feature?

From Australian-born Hammer veteran Don Sharp (The Kiss of the Vampire), Psychomania is a 1973 outlaw-bikie zombie-sploitation flick that wildly blends the more unhinged elements of A Clockwork Orange with fabulously B-grade occult folk horror and a funky psych-rock soundtrack to create a truly weird and wonderful cinematic gem, now recognised as a cult classic.

Meanwhile, the freewheeling plot of “apostle of excess” Ken Russell’s delirious 1988 disasterpiece The Lair of the White Worm involves a primordial phallic snake god and its virgin-sacrificing, vampy aristocratic acolyte; a kilt-wearing archaeology student who unearths a giant reptilian skull and thinks he has deadly bagpiping skills; a toffy young lord descended from a legendary dragon slayer; and more violently pornographic and deranged dream sequences than you ever thought one movie could contain!