When Nené Sanfilippo is killed, Montalbano is charged with the investigation and discovers that the Griffo couple, two elders who resided in the same building where Nené lived, disappeared after having made a trip to Tindari. Montalbano thinks that the two are not accidental and that there is a link. The two are then found killed with a bullet in the head. The case also involves Vania, a Romanian lover of Nené and wife of Isgrò, a famous surgeon experienced in transplants. Montalbano begins to think..
—Baldinotto da Pistoia