Passengers from a torpedoed ship are forced to take refuge in a lighthouse with the captain of the U-boat that sank them. It transpires, quickly, that the Captain is there to rendezvous with a Nazi agent who was travelling on the recently sunken ship, but there is also a pursuing British agent in the mix - add to which the two keepers on the rock already, and we have all the ingredients for this espionage escapade. To be honest, it's got way too much verbiage, and aside from some typically tart contributions from Martita Hunt is a distant, and poor, cousin of Hitchcock's "Lifeboat" (1944) witho... read the rest.