Castle
› Season 8
S8 E21: Hell to Pay
When an axe-wielding, escaped psychiatric inmate drops dead in Castle’s P.I. office, Castle and Beckett’s investigation leads Castle to suspect the victim’s death could be the work of the Antichrist.
| Air date | May 9, 2016 |
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| Runtime | 44 minutes |
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| TMDB rating | ★ 7.4/10 |
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