I chose Bob in the end exactly because I felt he was more nervous than the others, so you chose his dialogues well ^^
> I honestly thought that it would be a flop, cause the gameplay was "too boring" or something like that.
Well, it's true that there could be a lot more to do with the "time-looping detective" concept. I did got a bit "stuck" because of the lack of game mechanics... which I was able to get around thanks to your game design choices!
The clues, the nervous tone of Bob, the transfers are game elements, not everything needs to be a game mechanic. The game you created is played more in the head than on the keyboard, but it is still interesting to play thanks to that, which is why it wasn't a flop! =)
Plus, the graphics are really nice, and that helps a lot too. ^^