No pun intended - this is quite the interesting concept. Not amazing and not the greatest or whatever idea, but something that is fun to play with (again no pun intended). You have to like the style of game it is. If you are more of an action player, this will feel boring to you. You shouldn't even be here. If you care about story and twists and turns, this will float your boat. Especially if you are into detective stories too.
Trying to find out the truth and the whole whodunnit concept. One of the interesting things about this: there are quite a few people that might be the villain of the game. And the game seems to choose one at random. Which I guess is fun - but can also be annoying if you are aiming for specific trophies or achievements.
That said, the option to skip dialog after your first playthrough is nice. Especially the whole "changing" (be it rooms/location or ... that other thing you can do - not really a secret since the title is a bit of a giveaway) ... still too much time is being wasted and I'd understand if some are frustrated by this.
The challenge is there and the game is overall still a lot of fun - don't expect it to be too graphic though (violence or erotic wise) ... if that sounded intriguing and interesting ... well go ahead and give it a try.