AllMovie

That notorious criminal "Flash Jack" is at large in London, striking terror in the hearts of everyone (though just why is never made clear). Scotland Yard detective Harry Cross (Jack Raine) dedicates himself to bringing Flash Jack to justice. Cross' efforts lead him to a tender tete-a-tete with the fugitive's girlfriend (Muriel Angelus), and a bit of a flap with a rival detective (Jameson Thomas). He even shows up in disguise as a chorus boy in a West End musical revue -- a sequence that's just as silly as it sounds. One unimpressed reviewer likened Night Birds to an American "B"-western, with about as much originality. The film was also made available in a German-language version, which some observers preferred to the original.