On the most basic level it's a simulation about the job of someone who works a border checkpoint, he who decides to either REJECT or ADMIT each person who enters your booth, in line.
That might sound pretty boring, but the game executes it well.
It starts simple. You use the interface to call a person in line, and they are supposed to put their passport, papers or whatnot on your desk. You have to follow the rules, and decide if they should be admitted or not.
...You are paid for each person you process; and you have to provide for an extended family... So, you must try to work quickly, but mistakes can be costly D:
Each person is an invidiual, each with possible dialogue, and story. They might say they are running away from someone and need your help... and you have to decide if you will follow the rules, or risk losing your job. They might have a passport that says Female, and they look like a guy... and you have to deal with awkward situations. There are amusing people who don't even have passports, who just start chatting with you and waste your time or offer fake passports xD etc etc...
And there are also occasional radicals, and terrorists that might come before you... So you've got your work cut out, to make the "right" choices.
On a grander scale, the story of your socialist? country unfolds in the background through newspapers, and little events so there's potential for the game to unfold into something quite interesting as well as being challenging.
In any case, pretty unique game; aimed at mature audiences probably... [and there is limited cartoon nudity from full body scans at one point]
I'll probably give it a chance when it comes out on Steam! The LP does a much better job at showing you what to expect, if you can check out the video sometime.
Haven't played Paper Boy, but I don't think there is any action events like that xD