"This story blows up the Vatican ...",

the Hamburg attorney Dieter Prätorius notes, when his friend, the Hamburg investigator Serge Christiansen dictates the Vatikan protocol.

Christiansen is on the trail to reveal one of the greatest mystery of the Catholic Church. He is commissioned to find a disappeared Padre, who has dedicated himself to the mission of thwarting the machinations of the Vatican Bank. The man from Hamburg encounters the conspiracy of a fascist secret society, the Mafia and reactionary courier cardinals ... together with the Vatican Bank.

When John Paul I becomes pope, the world hopes for a reformation of the Church. However, he dies in office under mysterious circumstances after only 33 days. The man from Hamburg becomes the feared opponent of the wire-pullers behind the scenes. But the mafia has already sent a killer to Rome.

Can Christiansen help justice to victory and unmask the murderer?

A thriller as mysterious and frightening as the catacombs.