Boston Strangler is a 2023 American historical crime drama film written and directed by Matt Ruskin. It is based on the true story of the Boston Strangler, who in the 1960s killed 15 women in Boston, Massachusetts. The film stars Keira Knightley as Loretta McLaughlin, the reporter who broke the story for the Boston Record American. Carrie Coon, Alessandro Nivola, Chris Cooper, David Dastmalchian, and Morgan Spector co-star. Filming took place in the Boston area from December 2021 to March 2022. The film was released on March 17, 2023, by Hulu.