Ruth Ware’s The Woman in Cabin 10 is headed to the big screen, with Keira Knightley on board to star, Variety reports.

Ware’s novel, published in 2016 by Scout Press/Simon & Schuster, follows Lo Blacklock, a travel journalist on assignment on an exclusive luxury cruise ship in the North Sea. Lo witnesses a woman being thrown overboard, but after all the passengers are accounted for, has trouble convincing anyone that something nefarious happened. A critic for Kirkus wrote of the book, “Too much drama at the end detracts from a finely wrought and subtle conundrum.”

Knightley, known for her roles in Bend It Like Beckham, Pride & Prejudice, and The Imitation Game, will star as Lo in the film, which is being developed by Netflix. Joe Shrapnel and Anna Waterhouse (The Aftermath, Rebecca) are writing the adaptation, which will be directed by Simon Stone (The Daughter, The Dig).

Another of Ware’s novels, The It Girl, is being developed as a series for Universal Television by Dawson’s Creek creator Kevin Williamson. Her Zero Days was also optioned last year by Universal International Studios.

Ware shared news of the latest adaptation on the social platform X, writing, “Nobody told me that one of the hardest parts about being a writer would be KEEPING AMAZING SECRETS. Yes, THE Keira Knightley.”

Michael Schaub is a contributing writer.