Buried in the vaults of an ancient Parisian church lies a secret document. This document contains a series of Grand Masters belonging to an old religious order. The order is in conflict with the Catholic regime in Rome and is in the process of restoring its own power base, at any cost. Into this political maelstrom an English architect is drawn following the untimely death of his business partner. When the vengeful spirit of his dead friend returns to elicit the architect's assistance, he is unwittingly manipulated by forces beyond his understanding, and out of his control.