"Pretty Dead" reminded me of one of the reasons why I didn't want to review Castle week to week: it's a very normal, plain episode coming after a great episode. I have no problems with the episode itself, but the character interactions were the same asin most episodes. However, I do find it odd that the writers can write an episode like "To Love and Die in L.A." which has lots really funny lines and developments Castle and Beckett, and then turn around with the usual stuff.
Score: 8.4/10
