I was almost tempted not to watch Kleo because it sounded like so many things I’d seen before: beautiful ex-Stasi assassin, mysteriously imprisoned for nameless crimes, suddenly out of a job after the fall of the Berlin Wall, takes brutal revenge on all who betrayed her.

It’s reminiscent not just of everything from La Femme Nikita, Kick-Ass and Kill Bill to the ghastly, grisly Killing Eve, but of any number of hitmen-out-of-retirement dramas (most recently The Old Man), plus every revenge yarn from the Count of Monte Cristo onwards, all seasoned with a delicate hint of Deutschland 83.