The killer by the railroad

Ben is partially blind and loves playing piano has a young child but he receives bad news and has to learn to leave his life the best way he can but he won't have it and decide to get a surgery in Tokyo and after his surgery things go sour and he ends up in Bangor Maine where he is part of a blind study and suddenly murders start taking places all over the town and surrounding cities... An investigator and his partner are on the case and are knocking on doors for answers...