OK, I'm almost done flooding this thread, I promise.
I just want to say that the dialogue at the beginning of Day 5, where Trilby and Simone explain the mystery, is really neat. I just wish it offered more gameplay, that it involved a puzzle of some kind. Now if you get it wrong, Simone will just correct you.
Are there any games where you'll have to actively use evidence and reasoning to puzzle together a story?
Dagger of Amon Ra has something similar at the Inquest in the end, but I don't think that was done very well. People sometimes mention
Discworld Noir. Any others?