On this page of our The Medium guide, you'll find a walkthrough for the 10th stage of the game, Enter the Dayroom. Here, we have described all the interactions you need to do to get to the dayroom. This is a very short sequence that will take you to the next part of the hotel. However, you can perform some minor interactions that will help you understand the plot and increase the immersion.
In the last part, you found the bolt cutters. They are necessary for this part of the gmae. Without them, you won't get through.
First, reach the end of the corridor, the place where boxes are blocking the path. There you will find the entrance to the stairwell. All you have to do is use the bolt cutter to cut the chains that are blocking the path.
Go down the stairs to the floor below. You will reach the next part of the hotel.
On the lower floor, you will find another door locked with a chain. Cut it with the bolt cutters and you will open another passage.
You will reach another corridor. Go to the very end and you will find a door on the left. Open it with the bolt cutters.
Eventually, you will reach the door of the dayroom. You have to cut the chains to get inside. This will trigger the next part of the story.
Go through the door and watch a cut-scene. The next part of the game can be found on the following page of this guide.