Overview

• The film premiered Oct. 10 on Netflix and runs about 92 minutes.
• The adaptation makes notable departures from Ruth Ware’s 2016 novel, including a more audience‑facing climax, without detailing plot specifics.
• Author Ruth Ware endorsed the changes, saying the movie preserves the story’s core fear of not being believed.
• Director Simon Stone discussed retooling the material for the screen and cited facial‑recognition concerns as inspiration for the identity thread.
• The production was shot aboard a real megayacht, a choice reviewers say heightens claustrophobia, while critical response has been mixed with praise for Knightley and critiques of thin supporting roles.