The Chupacabra's July follows Hernandez, a sarcastic but sharp-tongued forensic investigator in Mexico City, who is called to a gruesome crime scene in a remote village—dozens of goats drained of blood, with no signs of forced entry. As Hernandez investigates, he uncovers claw marks, a bear drained dry, and tire tracks leading to cartel territory. Locals whisper the name “Chupacabra,” but the evidence suggests something more terrifying—and possibly manmade. Between corrupt leads, cartel interference, and now a suspect known only as the witch, Hernandez races to uncover the truth behind a killer that defies logic, biology, and fear.