“What number of girls need to die earlier than it’s a narrative?” Keira Knightley asks in a brand new trailer for “Boston Strangler.” Impressed by a real story, the thriller sees the two-time Oscar nominee taking part in Loretta McLaughlin, a reporter for the Report-American newspaper who is set to uncover the reality a few mysterious killer.

The spot means that Loretta doesn’t have the help of her bosses. “You’re on the life-style desk. You’re not protecting a murder,” she’s advised. She finds an ally in Jean Cole (Carrie Coon), a colleague who joins her harmful quest to find the assassin’s identification.

McLaughlin grow to be the primary journalist to attach the Boston Strangler murders.

Knightley acquired Oscar noms for “The Imitation Sport” and “Pleasure & Prejudice.” Her more moderen credit embody Camille Griffin’s “Silent Night time” and Philippa Lowthorpe’s “Misbehaviour.”

Coon landed an Emmy nod for “Fargo.” She was final seen in “The Gilded Age,” an HBO historic drama that’s been renewed for a second season.

“Boston Strangler” launches March 17 on Hulu.