Its story takes off in the heart of the Vatican and revolves around the Shroud of Turin – the world famous relic from our Italian sister-city...

The two protagonist siblings, Simon and Alex Andreu, are hereditary employees of the State of the Vatican, the elder one serving as a Roman Catholic priest, and the younger, following their father's footsteps, – as a Greek Catholic.

Minor dogmatic differences aside, the brothers remain good friends and look out for each other... Just like this one time when Simon recruits Alex to assist a museum curator Hugo determined to prove that the famous Shroud of Turin is real after all. In his opinion, the chemical analysis had an error creep into it, and the key to understanding the truth lies in the text of the four Gospels.

A couple of days before the exhibition at which the results of Hugo's research were to be made public, the curator is found dead, Simon becomes the primary suspect, and Alex's apartment is turned upside down by unknown intruders who seem to think that he, as an expert in the interpretation of the Gospels, should know exactly what Hugo discovered...

What follows is a complex and fascinating cycle of intrigue and investigation, in which:

- everybody lies (then admit that they lied, and come up with even more believable falsehoods),

- everybody pursues their own goals (the historical background of these goals sheds a lot of light on the history of the relationship between Western and Eastern Christian churches);

- and readers learn as much fascinating stuff as if they have just sat through a course on cultural and religious studies.