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1:55 Castle Series Finale: Watch The Final Moments
A murder-mystery writer and a detective team up to catch a serial killer who is reenacting murders from his books. Once the case is solved, the unlikely pair continue to work together to probe New York City's most unusual homicides.
But that's not the only major reunion ABC has planned this fall
Alan Cumming and Bojana Novakovic break it down
Prepare for all those Caskett feels to come rushing back
Is this Castle 2.0?
Why is she bursting out of a water coffin?