You start as some random dude on a caravan and the first mission is to get some red berries to cure some guy diarrhea, your entire caravan is killed by a bunch of random murder hobos and the game forces you do super entertaining combat of killing a whole party of copy paste muder hobos with only two characters, some random magic pink tornado almost kill you then the game proceeds and you get on a dungeon, after killing some ultra exciting monsters like giant spiders and oozes, you solve some babies first puzzles then you get out.
Some random dude is using some machine and your companions that you barely know are killed, you have nowhere to go but go foward, you arrive on a grimdark village, on grimdark village, some random dead lady says for you to seek Maerwald because you are a Watcher (some random dudes telling what to do is quite a pattern on PoE), you have a few options, 1) to finish the Raedrick castle quest that has one of the hardest fights of the game on the very first town if you do it at this level, 2) Explore the town dungeon with Eder and be murdered by shadows, just, kidding, your only option is: 3) Being hentai raped by shadows and chain stunning specters on some ruined castle.
Hummm, after all this work and 1000 shadows/fampyrs killed, you get to finally meet Maerwald, he is a crazy dude that talk a bunch of irrelevant shit and the game just give you a castle (without anything fun to do with it) and some incredible ultra vague hint of going to the major city of the game to finally discover what the fuck the story of this game is about. After all that, maybe those people that didn't finish act 1 were the wise ones.