Another secret service knock-off from serial budget-dodger Lindsay Shonteff. Buxom Diana Rigg-alike Linda Marlowe is secret agent Harriet Zapper, driving round London, straddling a gatling gun and marking time in between martial arts bouts with horny boyfriend Rock Hard. A gobsmacking scene where Marlowe stuns a hapless assailant with a bolt of badly superimposed lightning from her nether regions, apropos absolutely nothing whatsoever, ensured this film’s place in the annals of cult. Enough cash was raked in to justify a sequel, Zapper’s Blade of Vengeance (1974), which upped the body count and beheadings, and lowered the camp comedy angle – slightly. Shonteff carried on in this ramshackle vein, returning in the late ’70s with two films based around uber-randy secret service agent Charles Bind (sic), played variously by Nicky Henson and Gareth Hunt. And so the wheel of the customised Lotus Esprit turned full circle.