Colonel Ivor St. George, a former British Commando and now a pretty broke bloke, settles down in the household of the Goulds-Jeff whose life he had once saved, Mary whose welcome is less heartfelt. The reappearance of Victor, Mary's former husband who is blackmailing her and uses her (their) child as a vise, does much to increase the apprehension and tension here until St. George lives up to his name.... Debonair.