Ruth Ware's 2016 thriller, The Woman in Cabin 10, is now a major motion picture. The Netflix film stars Keira Knightley as a reporter plunged into a deadly conspiracy while on assignment on a luxury yacht.

In The Woman in Cabin 10 —a new psychological thriller now streaming on Netflix, based on Ruth Ware's bestselling novel of the same name—journalist Laura Blacklock (Keira Knightly) gets a travel assig...