Cool idea and the game itself. It would help a little to distinguish the characters, to not ask the same one again. Also what is a chance, that I started the game, I choose a first person I met, misclick by mistake, and kill a Doppelganger XD.

really cool take on the theme.

killed way too many people just because they contradiced each other^^

i think the red button is offset somehow (it pressed the wrong one when i pressed it)

Very interesting idea! I wish there was a bit more to deciphering who was telling the truth and who wasn't based on their dialogue and occupation. Everything worked well though and I liked the detective journal mechanic a lot. Great job with the visuals for such a short period of time.