A composer writes music at the piano. The notes come alive. One of them turns into a cowboy. He is courting a beautiful lady. As a result, the horns grow on the portrait of her husband. On the pentolinium sheet, the deceived spouse organizes the persecution. They pass through a forest of black signs. They descend into the abyss by the stairs from the "sharp" signs. In the final, a duel takes place. But the bullet does not hit the opponent, but the lady's heart…