Use the right side of the frame of the window on the right.
You’ll see the bars behind the glass. The second BAR from the left is loose so you can take it. Leave the window and turn to the right. Use the floor in the right corner to see a close up of the carpet. Use the right corner of the carpet to pull it back and find a CD under it. Take it and leave the carpet.
Turn to the right to see a wardrobe. Look at the wall on the left side of the wardrobe to see behind it and there’s a KEYCARD stuck behind the wardrobe. Take it. Leave the wardrobe and turn to the right again. Look above the door to see a switch you can’t reach. Use the bar on the switch to light the green light.Leave the switch and turn to the right to face the window again. Look at the left corner of the floor to see closer and use the floor in the left corner to lift the carpet and find a hole.
Use the bar with the hole and leave the floor. Turn right and see a cardreader next to the mirror. Use the table to move it to the right and use the keycard from your inventory with the cardreader. Open the mirror and take the KEY out. Leave the mirror and turn to the left. Look at the left corner of the carpet again and take the BAR out. Leave the corner, turn left and look above the door. Use the bar with the switch to turn it off again.
Turn to the left and use the key on the wardrobe. Open the wardrobe and take the SPRAYCAN out. Turn to the left and look at the mirror. Use the spraycan on the closed mirror to reveal a code. It’s a random code, so no help here. Leave the mirror and turn to the left twice to face the door. Look at the switch above the door and use the bar to turn on the switch again. Leave the switch, turn left and look closer at the device in the wardrobe.
Use the front panel of the device to open the CD-player and use the CD on it. An application will start, asking you for a code. Use the arrows to set the correct code and push the ‘enter’ button. A KEY will be revealed. Take it, leave the wardrobe and turn to the right. Use the key on the door and use the door to leave the room.
Game source: A copy of the game was found here on the internet.