Hikers find a body in Canyon Sin Nombre in the Anza Borrego Desert on the border between Mexico and California. The victim's brother identifies Ramon Matus, a Mexican-American conceptual artist. Intriguing connections between the dead artist and several participants in a winter solstice retreat at the nearby Casa del Zorro desert retreat raise questions. Can the key to the murder be found in Ramon Matus' complex and powerful art or in the U.S.- Mexico border conflict?