When signalman "Bert" (Robert Newton) sees some suspicious activity in the harbour one night he investigates only to find a corpse and a suitcase. On returning to his box to call the authorities, he notices that the case contains rather a large quantity of banknotes. Around £5,000! Now he is single-handedly trying to raise his daughter "Betty" (Margaret Barton) and has a few other issues to contend with, so he decides to keep the windfall and keep his head down. That might have seemed a good plan at the time, but soon people begin to spot the signs of his new found wealth and with police from both sides of the Channel as well as the original owners of the loot on his trail, things start to get distinctly dicey for him. On the plus side, though, he has made a new friend. "Camelia" (Simone Simon) is the only person in whom he's confided, but is she trustworthy? Is anyone? This features a solid cast of regulars like Irene Handl, Edward Rigby and the always reliable Kathleen Harrison as it quite menacingly develops into a story illustrating the dangers of following the green-eyed monster, however well intentioned at the start one may be, and at just how it can change people. Newton is very much in his element - he always did do the frantic and panicky characters well, and he does illicit a degree of sympathy as things close in on him. It packs quite a lot into ninety minutes, pretty much hits the ground running and is well worth a watch.