The ominous braaam, the sinister boardroom, the horrific imagery, the cloaked cult members, embryonic deformity, Jason Isaac’s German accent, mad scientists’ labs: it’s all very intriguing stuff… then I saw the running time.

Last week she had opened a door by mistake on a staircase in Bayswater and a woman in a tight black waspwaisted corset, pearls lolling between two great naked breasts, stood by a cage made of gold wire the size of a fourposter bed, in which were a dozen or so brilliantly fringed and tinted birds.

Duane Jones, who played the last survivor in George Romero's classic Night of the Living Dead, is the bloodhungry lead of Ganja and Hess, a dark and smoky 1973 classic of black horror cinema directed by Pill Gunn.

Hoo, boy, Angie thought with only a vague sense of reality. She was in it now. Deep.