Watch Castle Season 6 Episode 15 online via TV Fanatic with over 8 options to watch the Castle S6E15 full episode. Affiliates with free and paid streaming include Amazon, iTunes, Vudu, YouTube Purchase, Google Play, Xfinity, TNT, and Verizon On Demand.
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The murder of a high school mean girl brings Castle back to one of his many alma maters and face to face with a possible telekinetic killer on Castle.