When a group of Austrian cavers in the Italian Alps come across human remains at the bottom of a deep shaft, everyone assumes the death was accidental - until the still unidentified body is stolen from the morgue and the Defence Ministry puts a news blackout on the case. The whole affair has the whiff of political intrigue.
The search for the truth leads Zen back into the murky history of post-war Italy and obscure corners of modern-day society to uncover the truth about a crime that everyone thought was as dead and buried as the victim.