An inheritance, an island, and a decades-old disappearance — The Last Anniversary arrives with all the ingredients of a moody, character-driven mystery. Based on Liane Moriarty’s novel and adapted for television by Samantha Strauss (Nine Perfect Strangers), this six-part Australian drama debuted on Binge in March 2025 and is now also available in the US via AMC+.
The story follows Sophie Honeywell (Teresa Palmer),who unexpectedly inherits a house on Scribbly Gum Island from her ex-boyfriend’s eccentric great-aunt. What begins as a curious stroke of fate quickly turns complicated: the island is still haunted by the unresolved case of a young couple who vanished decades ago, leaving behind a baby girl. Sophie finds herself tangled in the private lives and old wounds of the community — especially those of the fiercely guarded Doughty family.
With a cast led by Miranda Richardson, Danielle Macdonald, Helen Thomson, and Susan Prior, The Last Anniversary weaves together family secrets, shifting loyalties, and the burden of inherited silence. As Sophie unravels the truth, the series touches on themes of motherhood, loss, and the strange intimacy of small places where everyone remembers everything — except what really happened.
Visually grounded in the lush setting of the Hawkesbury River region, the show is both atmospheric and emotionally taut. And while no second season has been confirmed (nor is one necessarily expected — the story is neatly contained), the show’s quiet revelations linger long after the final episode.