See How They Run.

The success of Knives Out in 2019 didn’t just spawn a highly-awaited sequel, Glass Onion, which hits theaters later this month – it has spawned attempts to capitalize on its success, with two similar movies coming out this fall, See How They Run and Amsterdam. These movies are like catnip to me, as I love mysteries and detective stories in general, and Agatha Christie stories in particular, having read 50 of her novels and four of her short story collections. See How They Run doubles down on this, as it’s a period piece mystery that involves Christie’s famous play The Mousetrap and eventually features an appearance by the Queen of Murder herself as a character. So while I recognize this film’s limitations, I also loved just about every minute of it. (It’s streaming free now on HBO Max, or rentable everywhere, including Amazon.)

See How They Run is a bit more than a perfunctory murder mystery, though, as the script engages in some legerdemain, even starting out in one direction before the murder takes place and the whole thing shifts. After that point, we get our intrepid investigators, the overeager young Constable Stalker (Saoirse Ronan), who is one of the first women in that position in the London police; and Inspector Stoppard (Sam Rockwell), the drunken detective of stereotype. Someone has been murdered after the 100th performance of The Mousetrap, and, of course, everyone’s a suspect, from the actors to the playwright to the stage director. Constable Stalker is new to the homicide beat, so she starts jumping to conclusions, assuming every suspect is guilty, giving the film the biggest of its running gags, although Ronan’s performance makes it work. There is, of course, another murder, and the script plays around with the tropes of the British murder mystery, many of which Christie invented, before getting to the identity of the murder.

The script is about 80% formula, 20% clever, but this is a formula I happen to love, and there is at least a playfulness in the script that nods to the inherent predictability of it all. The core mystery is both well hidden and well written, credible with enough clues dropped along the way that at least in hindsight you can see how you might have figured it out. (I did not.) There is also some humor in here, not as much as Knives Out offered, but a number of laugh-out-loud moments for me from the bantering and a few sight gags. Your mileage may vary, of course.

What really makes this movie, though, is Ronan’s performance. We’ve seen Ronan be funny, including her Oscar-nominated turn in Lady Bird, but we’ve never seen her be this silly, and she seems to throw herself completely into it. Her comic timing is great, but she manages to make Stalker a comic character without making her seem totally un-serious. Stalker’s overzealousness actually leads to a significant blunder, although even that scene is also kind of funny, but she’s never an object of pity or derision, and Ronan’s portrayal is the main reason. Stalker is earnest but green, and her errors, even when played for laughs, are borne of inexperience rather than incompetence.

Rockwell, on the other hand, is a replacement-level detective here, with a generic British accent and nondescript mannerisms beyond a slight limp that itself becomes fodder for the script’s mockery of the formula. I’m not sure why Rockwell was chosen for a role when there are plenty of English actors available, but he doesn’t have a real direction here – he doesn’t lean into the role and ham it up, but he also doesn’t give the character any urgency or gravitas. The conventions of the genre almost require one or the other, and instead Rockwell gives a fine but ultimately forgettable performance. The remainder of the cast is mostly big names or great actors in bit parts. The one major exception is David Oyelowo, who plays the closeted writer Mervyn Cocker-Norris and is clearly having a blast, while also getting a good amount of screen to chew. Adrien Brody is very good but doesn’t log enough minutes, and Ruth Wilson, who was stunning as Jane Eyre in the 2006 BBC mini-series of that name, is barely in the film at all.

The script does offer a bunch of Easter eggs for hardcore Christie fans, some of which appear in this EW story, although I won’t mention them here beyond the one in the title – the original name of The Mousetrap was Three Blind Mice. I caught a couple, but clearly missed the majority, although I admire the cleverness in slipping so many tiny nods to Christie, her works, and her adherents into the script. That may have ultimately worked against the finished film, however, as there’s so much Christie-ness or those that there’s probably less plot and less humor than there could have been. It doesn’t fare that well in comparison to Knives Out for that very reason. If you liked that film and also just like this genre, you’ll probably enjoy See How They Run as I did. If you aren’t a fan of witty murder mysteries, though, this isn’t going to have the same broader appeal that Rian Johnson’s hit film did.