I would be okay if Black Doves was just a straightforward spy thriller; Knightley and Whishaw have enough charm, enigma, and kick-ass competence to make it work. But beyond the show’s cool and slick demeanor lies a wealth of other gems. It’s a heartwarming friendship tale for one, and a heartbreaking romance for another. It also manages to be funny at the right times, thanks to Sam’s bumbling accomplices, while evoking Christmas cheer. It sounds like a random mishmash of things, but Black Doves effortlessly blends its many tones and genres. Knightley and Whishaw ground the show’s ambition with their affecting performance as two cold-blooded killers who depend on each other’s trust and friendship. It also helps that there’s a depth to the deaths in Black Doves. There’s a nuance here that’s missing in most crime and action thrillers. Bodies are still dispensible, but you know why and how they’ve reached that point. If you want something smart and gripping that isn’t Die Hard to put on this holiday season, this could be it.

I’m not sure how he does it, but Wishsaw manages to appear both cool and vulnerable, strong and weak, at the same time. I’ve always loved Knightley, but Wishaw is the clear standout here.