When an axe-wielding, escaped psychiatric inmate drops lifeless in Castle’s P.I. workplace, Castle and Beckett’s investigation leads Castle to suspect the sufferer’s dying could possibly be the work of the Antichrist.
Watch Castle S08E21: Hell To Pay On-line
Richard "Rick" Castle is a millionaire playboy who lately killed off his foremost character when a serial killer begins killing individuals like he does in his books. He groups up with New York police detective Kate Beckett to unravel the case. He finds inspiration in Detective Beckett and begins shadowing her for his subsequent guide.