I bought the entire trilogy about a year ago and started with Post Mortem, spent maybe 2 hours trying to get into it before giving up and forgetting about it.
Fast forward to this past week I tried to play it again from the beginning. Quit again and decided to skip right to Still Life, which I got way into and became invested with quickly.
Maybe it’s me but the dialogue trees in PM kind of ruined the experience for me because I always got hung up on them in fear of taking a crappier/harder path. Plus the first-person navigation is like trying to find your way around in Google Maps.