Hell to Pay (S08E21)
S08E21
When a crazed psychiatric inmate armed with an axe collapses and dies in Castle's private investigation office, Castle and Beckett dive into the case. As they dig deeper, Castle begins to entertain the unsettling theory that the bizarre death might somehow be linked to the Antichrist.
Show
Castle
Episode
S08E21
Air Date
May 09, 2016
Season 8 Episodes
S08E01
XY (1)
S08E02
XX (2)
S08E03
PhDead
S08E04
What Lies Beneath
S08E05
The Nose
S08E06
Cool Boys
S08E07
The Last Seduction
S08E08
Mr. & Mrs. Castle
S08E09
Tone Death
S08E10
Witness for the Prosecution
S08E11
Dead Red
S08E12
The Blame Game
S08E13
And Justice for All
S08E14
The G.D.S.
S08E15
Fidelis Ad Mortem
S08E16
Heartbreaker
S08E17
Death Wish
S08E18
Backstabber
S08E19
Dead Again
S08E20
Much Ado About Murder
S08E21
Hell to Pay
S08E22
Crossfire