A few suggestions for the sequel (if you do one):
1. no guessing puzzles (like the brief case and phone).
2. voices for the different people should be more easily distinguishable.
other wise fun game
Viewing post in Murder At Beedlesbrick Manor comments
I've updated the puzzles to provide more clues to the player, and remove the reliance on pure guesswork. https://korosia.itch.io/murder-at-beedlesbrick-manor/devlog/339893/fix-guessing-...