Joy is a fable about courage and youth. It tells the story of Luiza, 16 year old girl, who can not stand to hear about the end of the world… On a Christmas night, his cousin John is mysteriously shot in a street in the Lowlands and disappears into the night. Weeks later, while Luiza spends days alone in the apartment where he lives with his mother in Rio de Janeiro, a mysterious visitor comes knocking on your door: John, as a ghost, asking to hide there.

Jessica, Sabrina and Daiane have dreams, just like all young people of any social class or place in the world. They live in a low-income neighborhood in the periphery of Rio de Janeiro and find in prostitution a way to survive and satisfy their consumer desires. However, even faced with the trials of absolute uncertainty and lack of hope, Jessica, Sabrina and Daiane insist on loving, having fun and planning their future.

A dreamer boy tries to convince his father to venture out to explor the top of a rock, in Vidigal, which he believes is close to the sky, to communicate with his grandmother, whom he misses.