An investigation leads to obsession, as Castle attempts to unearth answers that have eluded him for decades, all while Beckett faces a crossroads of her own on the season finale of Castle.
A clue at the scene of the death of an armored-car driver leads Beckett and Castle back to an old case solved by Esposito. But COMPLICATIONS arise when they learn that Esposito might not have been telling them everything about his past with the culprit.
Castle and Beckett's long-awaited wedding is almost here but a shocking surprise threatens to ruin the big day.
Castle and Beckett will deal with the consequences of their decisions against the backdrop of a high-stakes investigation.
When the dead body of a New York City Councilman running for re-election rolls out of a rug and into Beckett's case files, she and Castle are thrown into the world of dirty politics.
When a body is found in the theater of Martha’s latest show, Castle and Beckett’s investigation leads them into the unexpectedly dangerous world of competitive a capella.
When Castle and Beckett wake up in bed, handcuffed together, in a locked room with no memory of how they got there, they must piece together the mystery of where they are and why, all while trying to escape. But as the two of them adjust to being shackled together, what's the biggest threat they face... the people who abducted them or each other? Meanwhile, Ryan, Esposito and Gates are left to investigate their disappearance in a case where all is not what it seems.
In "Room 147," multiple confessions to a murder make Castle and Beckett believe their case is more mysterious than meets the eye.
As Halloween approaches, Castle and Beckett are called to a graveyard where the body of a young man sporting vampire fangs has been discovered with a wooden stake driven through his heart.
"Death Gone Crazy" - When Beau Randolf, the founder of hit adult video franchise "College Girls Gone Crazy," is murdered, Castle and Beckett are confronted with a lengthy list of husbands, fathers and ex-college girls who all have motive. So to find the killer, they must delve deep into the victim's life, where they find surprises at every turn.