It's Cold in the River at Night by Alex Potts

Somewhere, in an isolated corner of Western Europe, Carl and Rita rent a house on stilts. Due to the pressures of spending so much time only in each other's company, cracks in their relationship start to appear. To relieve the pressure and secretly hoping to meet someone he can look up to who will take him on as an apprentice, Carl embarks on a search for the last remaining practitioner of an ancient local tradition.