Okay, just finished the 3 cases. It's definitely original and I can see the relation with the theme/bossrush, even if it's a bit of a weak connection in my humble opinion. Outside of the first boss I liked the quirks of the suspects, they definitely offer some nice unique moments to this game.
I can't say I liked the controls, ALT, W and S feels strange and not always responsive, maybe it would have been better to be able to work only with the mouse. But it's not too much of a problem, it's mostly a reading game after all :)
It's not too long either, so it doesn't get boring in the slightest, it's really the kind of jam experience we all crave for!