[4] It was adapted by Rodney Ackland and Frederick Gotfurt from Newhaven-Dieppe (also known as L'Homme de Londres or Affairs of Destiny), the 1933 novella by Georges Simenon.

One of the men is deliberately pushed into the water and the signalman cannot save him, but he decides to keep his suitcase, which he later finds is full of banknotes with a value of £5000.

Although based on Simenon's novella, the plot was restructured and the location was changed from France to England.

It was made at Welwyn Studios, with sets designed by the art director Cedric Dawe The film was a commercial success.

To people who know the "Newhaven-Dieppe" channel crossing there is a certain thrill in the Southern Railway scenes, the arrival of the ship, the cranes, the signal-box, the trains are all there beautifully and technically perfect.