Liked it until the last part, because the "savage girl" ending part lost me a bit. I just don't get how this former slave girl can fit into the story with his step family. To me it seems an unnecessary distraction. It also is not optional and therefore makes the MC automatically a psychopath, since he is not even thinking about calling the police or an ambulance to take care of that girl.
P.S.: I realize that the game has Psycho as it's theme. So far it seemed though that you would just play a pervert, that's why the last part kinda surprised me nevertheless.