Synopsis

In the hundredth episode of the series, Castle faces an unwelcome predicament: confined to his loft with a broken leg, he is unable to pursue a case. While he recuperates, Beckett departs to investigate the death of an IRS agent, leaving Castle adrift in boredom and discontent. However, a fleeting glimpse of a possible murder in the apartment across the street plunges him into a suspenseful mystery reminiscent of "Rear Window," one that resonates with unsettling personal implications.