From the introduction:
BRUJO is...
A game set on the night of the final day, December 21st, 2012. On this day the sun sets for thelast time. It does not rise again.
This perilous night is the future of this world. Only a Brujo has the means to escape death itself.
A Brujo is a medicine man, a witch doctor, a shaman, a sorcerer with uncanny capabilities. A Brujo, while he dreams, turns into a coyote and takes advantage of others. But in this black hour, you need every advantage you can get; you need the Brujo’s secret advantage.
But a true Brujo is hard to find. Often, the Brujo himself doesn’t even know. But right now you need to find a Brujo or you need to be a Brujo. You must walk the edge of the abyss, and as you do you have to believe that your actions will be true.
Only your lantern keeps the terrible secret beings away. And you must find a Brujo, soon.