Castle Season 4 Episode 2

Castle Season 4 Episode 2

When an ex-con is mysteriously slain in an alley, Castle and Beckett believe a vigilante is behind the murder. But efforts to identify their suspect are thwarted when they discover that he roams the city in a Superhero costume – and may indeed be a Superhero. Can they capture and unmask the killer before he strikes again?

Episode Title: Heroes and Villains

Air Date: 2011-09-26

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