After an overhaul of leadership at the FBI's New York field office, A. X. L. Pendergast is abruptly forced to accept an unthinkable condition of continued employment: the famously rogue agent must now work with a partner. Pendergast and his new teammate, junior agent Coldmoon, are assigned to Miami Beach, where a rash of killings are being carried out by a bloodthirsty psychopath.