Arena(2009)

A young man under house arrest spends his time in the best way he can by making some tattoos. His relative peace is strangely disturbed when he's attacked and robbed by three kids from the neighborhood. From then on, he'll try to find the kids who took his money and maybe give them a lesson. But with those actions, comes the reflection of how things were and are in this place filled with violence and hostility. Is change possible?