This contains all the usual ingredients of an Edgar Wallace film.A gang led by an out of the usual gang leader who commit crimes that baffle the police.The film ending up in a frantic chase using an unusual form of transport.The leading roles are played by Jack Hulbert and Genevive Tobin.Hulbert is slightly more restrained in his mugging than in most of his films.Tobin is a scarcely believable gang leader.Unfortunately it seems to be the case that the only way that English film makers were going to get their films shown in the States was if one of the leads was American.now where that could be a bonus with Edward G Robinson or Marlene Dietrich in a leading part it is very much a detriment when a lesser actress is involved.This film was made as an independent production for General film distributors at a very low ebb in the British film industrys fortunes.Hulbert doesn't even mention this book in his biography.