In the early morning, Luiz Miguel wakes up and, when his parents don't show up after he calls, the boy realizes he has the difficult task of going to the bathroom alone without being noticed by the terrible Swamp Monster that lives under his bed.

A corrupt employee of the Ministry of Culture travels to the interior of Pará to authorize environmental exploration by a mining company. What he did not imagine was that, in addition to the minerals, the region held mysteries that would forever change his skepticism and convictions.