Chapter One - An Emergency Call
Once you gain control of Detective Sebastian Castellanos, flanked by a full team consisting of uniformed officer named Connelly and two detectives Joseph and Kidman. Players might recognize the voice of Kidman as Jennifer Carpenter, famous for her recent role as Debra Morgan on Showtime’s Dexter.
With introductions out of the way make your way into Beacon Mental Hospital via the large doors in the front. Follow Joseph through the lobby and into a room on the left. This should trigger a cut scene and once it’s over you’ll need to turn around and approach the monitor at the end of the room. This will trigger yet another cut scene and an event you’ll want to get used to.
When you regain some control follow the on-screen prompts to grab a knife from the nearby body and cut yourself down. This will allow you to move around and you’re going to want to keep an eye out for your target, a set of Ordinary Keys. They should be hanging near the table where the guy is cutting up a dead body. Wait for him to move away and then sneak up and grab the keys.
You can’t kill this enemy so you’ll need to quickly exit the room and head back out the way you came, twisting right and using the keys on the door. Head up the stairs and move along the catwalk until an alarm begins to wait. Once your adversary with the chainsaw starts chasing you, move in the only available direction and follow the on-screen instructions to make a daring escape into the grate.
After the excitement has died down you’ll want to climb out of the pit of body parts and use the nearby ladder. Make your way around the outside of the room and through the door, following the corridor to a railing. Take a right from here and jump into the water. You won’t have to go far to climb out, so use the ladder and then follow the walkway to a corpse in a wheelchair. Here you’ll find the Old Note from Sewer, a handy document with some hints on how to escape the area.
Now continue moving along the walkway to an open doorway at the end on your right. Pass through the door and up the ladder, then move into the makeshift jail cell nearby. Here you’ll find the Boiler Room Note, a piece of document with a little back story as to what happened in the hospital.
Head back out the way you came and look to your right, interacting with the panel next to the door to open it. Head through the door and follow the hall all the way to the end. You really only have one path you can take right now, so keep moving forward until the enemy with the chainsaw shows up once more. Follow the on-screen prompts to complete the quicktime event and hide in a locker nearby.
Once he leaves you’ll want to leave the safety of the locker behind and start sneaking. Exit the room and follow the hallway, making note of the room to your left which your friend with the chainsaw is currently presiding in. You’ll need to wait for him to turn away before you can sneak past the door, but once he’s behind you continue making your way down the hall and to the door at the far end.
Once the psycho is behind you continue through the asylum into a long corridor filled with wheelchairs and gurneys. This will trigger a scripted chase scene and you’ll need to run for the elevator to trigger the game’s opening credits.
Once your elevator ride is finished make your way through the corridor and out into the lobby where you first started the chapter. Exit through the front door to trigger an extended cut scene and bring the first chapter to an end.