in the beginning, it looks like it might be a story with an interesting twist, which maybe deals with the inner thoughts of a psychopath. after about halfway through, it is becoming clear that it's just another run-of-the-mill pseudo-mystery story which has about as much complexity as the story of house of the dead 2.
i continued playing because i hoped there might still be a twist coming but pretty short before the end, i'm not even interested in seeing some cliche ending.
also, the control scheme is pretty awful (no ability to run and at times it's easy to mistakenly walk up and down stairs - during which one loses control of the character) and while some of the images were interestingly surreal, they IMO should've shown a lot more gore and maybe if the camera was more close up, it would've been nice especially for the gore.
puzzles are nice and pretty logical though, that (and the fact that it does have a nice overall design) is the reason why i still rate it 5/10. but i wouldn't recommend it.