Cookstrip home as a weekly feature in The Observer. The first cookstrip, "Cooking Beef: Part 1", appeared in The Observer on March 18, 1962 eight months before the release of Deighton's debut novel, The IPCRESS File. The "Len Deighton's Action Cookbook" which expanded these cookstrips into a full-length book was published March 1965, timed to coincide with the release of the film of "The Ipcress File" starring Michael Caine. Deighton chose the menu for the movie's press lunch and everyone was presented with a copy of the book. In the movie, Caine's character, Harry Palmer, is seen cracking eggs with one
The IPCRESS File Minister of Defence, thus making the novel itself the 'IPCRESS File' of the title. The events begin soon after his transfer from military intelligence to WOOC(P), a small civilian intelligence agency reporting directly to the British Cabinet, where he works under the command of a man named Dalby. An intelligence broker code-named "Jay" is suspected to be behind a series of kidnappings of highly placed and influential British VIPs with the intention of selling them to the Soviets, and the protagonist is assigned to meet with Jay to secure the release of "Raven", a high-ranking scientist and his latest target.