When a beautiful woman is found dead in an alley, all clues point to her being a victim of the notorious Triple Killer. The Triple Killer, or 3XK, terrorized New York City four years ago, then mysteriously disappeared. Now he's back. In a deadly battle of wits, Castle and Beckett race against time to stop 3XK before he claims his next victims.
Stars: Nathan Fillion, Stana Katic, Susan Sullivan
Director(s): Bill Roe
Writer(s): Andrew W. Marlowe, David Amann
Genres: Comedy,Crime,Drama,Mystery,Romance