After an altercation between Alex, the president's son, and Britain's Prince Henry at a royal event becomes tabloid fodder, their long-running feud now threatens to drive a wedge in U.S./British relations. When the rivals are forced into a staged truce, their icy relationship begins to thaw and the friction between them sparks something deeper than they ever expected.

After suffering a personal tragedy, and desperate for justice, Jacob Kanon, a veteran New York City police detective, embarks on the search for a twisted killer who is leaving a bloody trail of elaborate murders across Europe.