It’s a daring mix of genres, but it works, as though Noah Baumbach had been called in to do a rewrite on “How to Steal a Million.” Steven Knight wrote and directed one of the best (“Locke”) and worst (“Serenity”) films of the last decade, but when he is good, he is very, very good, and his skillful handing of relationships and claustrophobia and corporate-speak is matched by Liman’s ability to bring all of this to fruition.

COVID-19 serves as a fitting backdrop for an amiable romp about the freedoms we take for granted, and the confines that dictated our lives long before we were forced to spend them at home.

If you’re looking for two hours of not-quite-escape, the solipsism of Locked Down has real charm and entertainment value, not least in its willingness to be a movie about adults — and for adults. If the specter of a global pandemic haunts the material more than it enriches, well, it’s not alone, is it?

Hathaway and Ejiofor seem excited to play edgier, less nice people than they often get the chance to, and the early scenes of them locking horns in their claustrophobic (if posh) flat generate enough energy to carry the movie almost all the way over the finish line.

Certainly, the actors seem to be having a good time, even if the people they’re playing are utterly miserable. Hathaway’s comic timing has become a marvel in recent years, but Ejiofor, too, exults in the chance to throw off his usual gravity.