Near future. South Texas. Narcotics are legal and there’s a new contraband on the market: ancient Olmec artifacts, shrunken indigenous heads, and filtered animals—species of animals brought back from extinction to clothe, feed, and generally amuse the very wealthy. Esteban Bellacosa has lived in the border town of MacArthur long enough to know to keep quiet and avoid the dangerous syndicates who make their money through trafficking.

But his simple life starts to get complicated when the swashbuckling investigative journalist Paco Herbert invites him to come to an illegal underground dinner serving filtered animals. Bellacosa soon finds himself in the middle of an increasingly perilous, surreal, psychedelic journey, where he encounters legends of the long-disappeared Aranaña Indian tribe and their object of worship: the mysterious Trufflepig, said to possess strange powers.