Evandro Souza is an engineer and travels for the first time to the interior of the country, in the village of Barreira Pequé, on the banks of the Araguaia River. He begins to make friends with the natives of the region, like Marão, but what he did not expect was to be involved in a murder. Evandro was the only witness to the crime committed by Marão, however, when questioned, he does not know what to say. Until there is a meeting between Evandro, Marão and the local corporal.

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