Cats. Our oldest companions. They have befriended us, consoled us and given us many memories. No cat lover can doubt there is nothing quite as satisfying as the loyalty of a feline friend. But sometimes, it can go a little too far. Something that Dr Richard Cooper, recently widowed, is about to find out. The hard way. On a reminiscent fly fishing trip, Mr Gregory Rose is hunting the rainbow trout. But out on the loneliness of the lake, he discovers, to his dismay, that there is more than just fish that lurk in the depths. Sometimes ita s our own past that we cana t help but bring up to the surface.