Christmas time is approaching ... By the river, in winter and fog, a female figure is huddled. It's a buyer from a nearby shop. She could have her knee drilled for the tailor, so even the frost would not spoil the joy of the Christmas catch. The carp will be fresh and most importantly free! But a greedy businesswoman doesn't have enough. Immerse the net in the water again. Let me go, good woman ... "suddenly a gentle voice comes from the river. The merchant cannot believe his eyes - a magical mermaid has been caught in her nets!