"Thou shalt not kill!"
An old abbey is the scene of a series of mysterious crimes, and only one man can get to the bottom of them. Former royal advisor Leonardo and his assistant Bruno are on their way to the remote monastery unknowing of the strange goings-on surrounding a carefully guarded secret. Yet even before they arrive there, their quest is overshadowed by an attempt on their lives...
A thrilling mystery story!
Having reached the abbey, the two companions are confronted by one mystery after another, and the old walls stubbornly refuse to reveal their secrets. Piece by piece, Leonardo and Bruno uncover a plot that could shake not only the foundations of the monastery, but also those of the Church itself...