Early in its history, the Roman Catholic Church established a secret sect of elite spies and killers, tasked with protecting the Church's treasures and secrets. This sect is called the Mystiko Kataskopos.

Members of the MK are highly trained in mystical practices, spying and assassination. They do whatever the Church demands.

One such operative, Raphael Ward, is charged with finding the 'real' version of the legendary Shroud of Turin, secretly stolen by the Nazis during World War 2. His search leads him into conflict with some of the world's most powerful leaders; men willing to do anything to protect a secret that would change the world forever.

As Raphael faces threats to his life - and threatens the lives of others - he begins to question the very faith that has sustained and driven him for so long. When he finally uncovers the shocking truth, he realises that nothing can ever be the same again.