If you were an escaped Nazi criminal on the run in England, what would you do? Go deep underground? Try and Swim the channel? Or murder an emigrating scientist, take over his laboratory, and continue the unholy germ warfare experiments that you were doing back there during the war whilst pretending to be British and restraining yourself from screaming "Mein Furher!" As he was sort of brought up in England as a child his British accent is flawless, but the Nazi criminal is such an arrogant, ill-tempered, moaning bastard that he immediately attracts suspicion from everyone around him! It doesn't help that he's got a dead body in a trunk, won't let anyone into his secret germ warfare lab, shouts at the help, and falls in love with the daughter of the murdered scientist friend when he should have probably killed her instead (he was going to!).
Our Nazi scientist also spends a lot of time avoiding a woman who knew the guy he killed, replacing his house staff with suspicious teutonic accented women, and preventing the girl he didn't kill from falling in love with his assistant (who's is highly suspicious mainly due to a set of golf clubs).
This all sounds jolly exciting, but it kind of isn't for the most part. It's hilarious watching this guy barely restraining his Nazi tendencies (he even 'puts down' a German for decrying the Third Reich!) whilst trying to be a jovial Englishman, but a lot of this drags a bit, especially the ironic ending, which surely would have had many a surviving Jewish person saying "Er...too soon." Still....etc.
