It feels like ages since we’ve gotten to enjoy seeing Saoirse Ronan on-screen. The four-time Academy Award nominee only briefly appeared in Wes Anderson’s The French Dispatch, one of the two movies she’s done since Greta Gerwig’s Little Women back in 2019. So even though it’s just a trailer, the first look at her next film, See How They Run, feels like a treat—especially if you’re a fan of star-packed whodunnits à la Murder on the Orient Express. Directed by Tom George, the upcoming mystery movie stars Ronan as Constable Stalker, a rookie detective who’s uncontrollably eager to crack a murder case with Inspector Stoppard (Sam Rockwell), her comparatively seasoned partner-in-crime. Filming of a movie adaptation of a hit play is underway in London’s West End when the dead body of one of its stars, Leo Köpernick (Adrien Brody) turns up on stage. (Or is “staged” on stage, as the constable puts it with a chuckle.) And no one’s allowed to leave the theater until they find out who did it.