In the film, the criminal mastermind Carl Petersen attempts to delay the production of a supersonic airliner through acts of murder and sabotage.

A series of inexplicable accidents befall the development of the world's first supersonic airliner, the SST1 – a man falls victim to a homicidal air stewardess and two women perform separate acts of sabotage during tests.

Aided by ditzy American blonde Flicky, Drummond uncovers a plot by criminal mastermind Carl Petersen, who stands to gain eight million pounds if the aircraft is not ready by a certain date.

After the initial sabotage attacks by Peterson's robots, Helga and Pandora begin systematically murdering various people associated with the SSTI, such as engineer Dudley Mortimer and Miss Mary, a spy who runs a cooking class as a front for his activities.

The Monthly Film Bulletin wrote: "Bulldog Drummond would turn in his grave if he could see what has happened to him in this inane sequel to Deadlier than the Male.

The spy spoof died a lingering death some time ago, but Betty Box and Ralph Thomas seem not to have heard the news.

The result is a crude mishmash of tired jokes ("I say, do remember you're British," says Drummond's mother-fixated buffoon of a bodyguard), second-hand gadgetry, and a tedious collection of giggly, mini-skirted female assassins.

And the script's desperate attempts to camp it up (Robert Morley drifting embarrassingly through as a cookery specialist with flower-patterned shirt and an earring, Carl Petersen dressing for dinner as the Duke of Wellington) completely misfire.

"[5] The New York Times was especially scathing, calling Some Girls Do an "... addlepated distant cousin of James Bond... Richard Johnson, (stars as) the glum Drummond of this mishmash of an intrigue ...[6] Reviewer Leslie Halliwell dismissed the film as an "... abysmal spoof melodrama in the swinging 60s mould; a travesty of a famous character.