Portsmouth, NH, March 5th, 1873... A confluence of events resulted in the murders of two women and brought national attention to the Maine/NH seacoast area. By mid day of Thursday, the 6th, word reached Portsmouth police that an atrocity had taken place on one of the islands, called Smuttynose. A group of fishermen from the Isles of Shoals were stunned with disbelief and rambling in heavily accented English when they broke the news to authorities. Two of their own were savagely murdered. The killer could still be out there on the small cluster of islands or had somehow made it back to Portsmouth in a dory on a very cold night. He had to be caught and, what's more, they knew who did it. Police Chief Thomas Entwhistle calmed the men and slowly began to piece the story together.The murders of Karen and Anethe Christensen by a Prussian immigrant who rowed ten miles to their deserted island, stirred controversy when it happened and continues to do so today. Cold Water Crossing sheds new light on that event and brings to life, the tragedy of one Norwegian immigrant family.