Bulldog Drummond's Bride (1939) on Netflix

Plot summary

Henri Armides is sure his plan for robbing a London bank cannot fail, and he and his assistant Garvey escape with ten thousand pounds. They hide the haul inside a radio set that stands in the flat Captain Hugh Drummond, known as Bulldog, and his bride-to-be Phyllis Clavering mean to take once their long-delayed wedding has happened. Drummond and Phyllis look the flat over before the ceremony. Phyllis is waiting in a French village, expecting to be married the next day, and she sends Drummond a telegram asking him to forward the radio to her. Neither of them has any idea what the radio holds.