Castle (2009)

The Fifth Bullet

Aired Dec 7, 2009 · 9:00 PM ET · 45 min

Castle and Beckett uncover that a bullet is missing from the crime scene while investigating what happened when an art dealer was gunned down in his own gallery. However, when it turns out there was a witness to the murder, they need to refresh the man's memory, only to find out that he suffers from amnesia and can't even remember who he is.