For the majority of the game you will meet individuals within a given district and learn all there is to know about them. You will find out how they are connected to the other people you have met, you will gather clues about their lives, and then you will make dialogue choices that will either help you solve their problems, or learn more about someone or something else.
Source: N4G PC Vampyr Review: A Thrilling Mystery you can Bite Into | Slanted