A 'clinic' on Paris's Avenue Foch designed to cater lavishly for multiple perversions, staffed by a group of sexually and intellectually high-powered girls and equipped with devices ranging from an Iron Maiden to psychedelic truth-drugs that's the set-up operated by the enigmatic Monsieur Daft. Naturally, it has a hidden purpose: to compile dossiers of tape and film on influential political clients from East and West. Into this twilight world of decadence and hidden motives come the agents of four world powers. Are they after Datt's pornographic blackmail dossiers? Or is their purpose, altogether more deadly than a trip to the blue movies ...?