I hadn't expect a Halloween episode this soon, because next week's episode, after all, airs on Halloween, but I'm always game for Halloween episodes, especially on Castle. We get a decent ghost story, full of Castle wanting it to be true followed Beckett's usual denials, and some good scares along the way. This is the kind of Castle episode I want to see each week, one that can balance the humor with serious issues.
Score: 8.8/10