Back up youre game saves often.

[TheHarryGamer99]

If you wish to get the plat in this game just note that the game is extremely buggy and can leave you in positions which are impossible to progress. For me this was only 10 minutes from the end of the game where the game spawned me at the bottom of a sewer and my ism is stuck under the map and the girl cant user the lever to go through the sewer of go backwards where it should have only spawned the ism at the top of the sewer. So simply back up your save online or to a USB every 15 minutes of so and be careful not to be caught in a lose lose situation. Also, do not interact with the book once you go though the mirror in room 202 and up the ladder, until you both characters are off of the ladder. That also locks the game.