Spoilers play the game first
This was a cool little game, I really liked the heartbeat mechanic. It made you feel like you were on to their patterns. I also liked how the characters would react differently when you called them up or confronted them multiple times.
I felt very invested in finding the killer and went back and forth interrogating the different suspects. That made me try all the endings too. I get why you did the open ended thing, but to be very honest, it felt very unsatisfying to me. Like trying to solve a puzzle and having the feeling you are getting close, but in the end it turns out there was never a solution at all.
I’m not giving you a lower score or anything for that, the rest of the game was really awesome and well done. Keep up the awesome work! 😁