[s2e17] Tick, Tick, Tick... [ 2027 ]

: For the first time, Beckett is the target rather than just the investigator. The killer leaves her personal items and invades her space, making the threat intimate. The Turning Point: The Staged Suicide

The episode ends on a literal "boom." Just as the team thinks they might have a lead, the killer strikes at Beckett's home. After a tense buildup of a literal ticking clock, , leaving her life and Castle’s Muse in the balance.

Because the killer is a high-profile serial threat, the takes over the case, led by Special Agent Jordan Shaw (played by Dana Delany). This creates a fascinating professional rivalry: