CASTLE: MISTLETOE & MURDER (2026)

Nathan Fillion • Stana Katic • Kristen Bell
Holiday Mystery • Romantic Crime • Cozy Thriller

New York City glows under a blanket of snow, shop windows glitter, and carols echo through the streets—but beneath the festive charm, something deadly is at work.

When a beloved philanthropist is found murdered during an exclusive Christmas charity gala, Richard Castle and Kate Beckett are pulled into a case that feels deceptively warm on the surface and dangerously cold underneath. Every suspect smiles too easily. Every alibi comes wrapped in tradition, reputation, and holiday cheer.

As the investigation unfolds, the clues begin to mirror their own unresolved history. Old feelings resurface with every late-night stakeout and snow-dusted crime scene. Castle’s playful instincts clash with Beckett’s controlled intensity, but their chemistry—sharp, aching, and unmistakable—proves just as powerful as it ever was.

The arrival of Detective Evelyn Hart (Kristen Bell)—brilliant, charming, and unsettlingly perceptive—adds a volatile new dynamic. Her methods challenge Beckett’s authority, her wit rivals Castle’s, and her presence threatens the fragile balance between them. Is she an ally… or someone with her own secrets to protect?

As bodies pile up and motives twist, the killer stays one step ahead, using the season’s goodwill as perfect camouflage. Trust fractures like fragile ornaments, and Castle and Beckett are forced to confront the hardest question of all:
Can they trust each other when the truth could cost them everything?

Blending sharp humor, emotional depth, and classic Castle suspense, Mistletoe & Murder is a love story wrapped in danger—where romance simmers, mystery bites, and Christmas is anything but safe.

This holiday season, the past won’t stay buried… and love may be the most dangerous clue of all.