Season 6 of Cassandre returns to the striking Alpine setting of Annecy, where Chief Commissioner Florence Cassandre (Gwendoline Hamon, Perfect Murders, Murder In…) continues to balance high-stakes investigations with the demands of family life. Now firmly rooted in the region after transferring from Paris, Cassandre remains defined by her sharp instincts, empathy for victims and occasional clashes with hierarchy. The icy lakes and mountain vistas once again provide a dramatic backdrop, contrasting natural beauty with human darkness.

The opening episode features a key guest appearance by Philippe Caroit (Perfect Murders, Murder In…), whose character is central to a case that quickly turns personal and morally complex. Caroit brings gravitas and ambiguity to the role, matching series lead Gwendoline Hamon in a tense investigation that tests Cassandre’s judgment and emotional resilience.

Across the season, the familiar team dynamic remains essential. Cassandre’s trusted colleagues provide procedural rigor and flashes of humor, while her evolving relationship with her son continues to humanize the formidable captain. Season 6 deepens the show’s exploration of loyalty, secrets and second chances, proving that even in a close-knit Alpine community, the past is never far from the surface.