16/04/2026
Fans of The Chelsea Detective have reason to look forward to 2026, as a fourth season has officially been ordered and is already in production. The new season continues the series’ focus on complex murders set against the polished and often secretive world of Chelsea, London.
Adrian Scarborough returns as DI Max Arnold, alongside Vanessa Emme as DS Layla Walsh. Together, they investigate a new set of feature-length cases involving wealthy and powerful figures whose glamorous lives conceal darker truths. The season is expected to continue the show’s signature blend of atmospheric storytelling and character-driven mystery.
This time, the cases span a fashion mogul under pressure, an aristocratic family guarding its reputation, a wellness industry figure with hidden secrets, and a double murder tied to the competitive world of high-end architecture. Supporting cast members including Sophie Stone, Lucy Phelps, Peter Bankolé, and Frances Barber all return, as Max’s personal life also hints at new romantic developments alongside the investigations.