Night at the children's toys store. All toys sleep peacefully on the shelves. A tube with blue paint Biryuzok wakes up and starts a conversation with pink paint Rosita. They admire the bright colors in which the world around them is painted. Suddenly, from the other box appears Black paint and her assistants - Soot, Burnt bone, Smoke. They are unhappy with the fact that everything around is multicolored, and their own so little. Then they recolor everything in black, and colorful colors and Rosita decide to drown. But Biryuzok can not allow this: he raises the alarm and all the toys rush to the rescue of the pains that have got into trouble. Evil Black paint itself sinks in the pool, and the rest of the dark colors beg for mercy. Toys make order in the store, everything is as before. And only Biryuzok dies: he paints a picture and forever remains on a blue sky.