Aired 15 years ago - Dec 07, 2009
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.
Mouse over thumbnail for slideshow
Or scroll and see one by one: