An easy comparison for the film would be "The Americans" TV series. However, while there are some character parallels between Keri Russell's character on the show and Lawrence's character in the movie since it is set entirely overseas, the better comparison would be to Atomic Blonde, with less over-the-top fight scenes. The movie is a spy thriller with a KGB vs. CIA kind of plotline, with the loyalties of almost every character called into question at some point. While it is set in the modern-day (there are cell phones and laptops), because the spycraft in the novels was deliberately kept old so that the author did not reveal any modern-day secrets, the movie has a very cold-war 1970s-1980s feel to it. As a result, some of the technology in the film is very old-school. Those old enough to remember 3.5" discs will find it hilarious that they are being used to copy files off a modern-day laptop computer. If any laptop had a 3.5" disc drive, they have not been around in a long time.
The 4K set is a two-disc set with a UHD disc and a regular Blu-Ray disc. The UHD disc has just the movie and the director's commentary. The movie looks and sounds great in the ultra-high-definition format. The regular Blu-Ray has all the other extras, including previews, deleted scenes, and over an hour's worth of making-of and behind-the-scenes featurettes. So, there is a decent amount of bonus material for those who like to watch the extras. Overall, the movie is very good. It is well-written and acted, and Lawrence takes on a different role than those she had played up to that point. The movie is very violent, and there is some nudity with a lot of sexual tones and themes. The movie is a bit different from the book it was adapted from, but it generally stays true to the story in the book.