A middle-class condominium on João Pessoa, a state capital city from northeast Brazil. On the night of the carnival holiday, a severed arm is found floating in the pool. The few residents and workers who are there don’t know what to do and don’t have a clue about where the limb came from: for some, it’s the work of a killer who lurks the place. For others it’s some kind of political terrorism or even a divine sign. As they try to unravel the mystery, the tension rises and they begin to doubt one another.