Detective Tess McCrae investigates a grisly crime scene in the ghost town of Credo, Arizona. To an ordinary investigator, the evidence suggests a cartel drug hit. But Tess, with a nearly faultless photographic memory, is far from ordinary, and she sees what others might miss: this is no drug killing. Someone went to gruesome lengths to cover up this crime. The killer’s trail leads Tess from Tuc...