Strictly Confidential is a comedy romp in which two conmen are released from prison and decide to ply their old trade by resuming their military disguises. 'Commander' Bissham-Riley (Richard Murdoch) and 'Major' Rory McQuarry (William Kendall) are thrown out by an enraged restaurant owner and bump into a beautiful young widow, Maxine Millard (Maya Koumani). Millard is the chairman of Grannies Globules Ltd, and appoints the two heels as Managing Directors. As they create havoc with their bumbling it is up to the works manager, Mr Grimshaw (William Hartnell) to save the family firm.