A dead man's curse on a London party house seems to echo from 1780 to 1936.

Taxi driver Jim befriends Ruritanian child King Ludwig while the latter is on a visit to London. A plot is afoot by sinister forces to kidnap Ludwig, and Jim becomes caught up in the drama. After the child is abducted Jim uses all his ingenuity, including cross-dressing as a Countess and becoming involved in a car chase, to rescue him from his captors.

A British crime film directed by John Longden

A British army officer is cashiered, and re-enlists as Private to take part in the Crimean War. He succeeds in capturing a top Russian spy which results in the famous Charge of the Light Brigade to take the Balaclava Heights.