Daniel, 7 years old, dislikes the grey days that go by and look alike. Therefore, he draws: with three colours that will cover the white sheet. Each colour evokes a different thing to him: yellow like the afternoon's light in the living room, red like his older sister's dress, blue like running water. Suddenly, the drawing cheers up, the sun turns, the colours dance, and the world opens up. Later, as always, fights erupt. Everything becomes ugly and black. Daniel wants to escape or that the colours invade it all.