This is the nearest thing to a checklist of Jess Franco trademarks as I have ever seen. So – a wall-to-wall sitar-spangled jazzy soundtrack (heard before in ‘Vampyros Lesbos’), familiar faces (Soledad Miranda, Howard Vernon, Fred Williams, Ewa Strömberg, Paul Muller and Franco himself), plenty of eye-watering locations, lots of zoom-ins (which, after seeing a number of Franco films, I am learning to love rather than tolerate) and a hurried, garbled finale. The only two elements this lacks to allow for a Full House are stablemates sex and horror, which are there, but only very briefly.
Franco, as he often did, casts himself in a particularly thankless role. At one stage, his character Tino offers to buy Jane (Miranda) a drink. After she looks him up and down, she declares, “I hate Brilliantine,” and flounces off.
The story is tighter than on some other occasions and strays into thriller/espionage territory, with Miranda stealing every scene as Jane Morgan. There are some scenes set in London, which have charms of their own. Introduced by a sweeping panorama courtesy of an aged film-reel taken from elsewhere, the subsequent locations are as blatantly Spanish as you could wish.
With the notion that a mineral can turn humans into zombies, you may imagine such creatures play more of a role here. Never a fan of the walking dead, Franco uses the idea as a background piece, and only featuring any living cadaver twice throughout (in disappointingly subtle make-up). The rest of the time, we are concerned with Morgan and handsome Fred Forrester (Williams) and their various misdeeds and adventures.