1. Look at the note on the door:
2. Look at the note on the wall:
3. Zoom out. Zoom in on the clothing. Look at the note in the pocket of the blue suit:
4. Zoom in on the briefcase on the table and look at the clue on the pocket:
5. Turn right. Look under the poster for this clue:
6. Turn right. Look at the clue on the control panel:
7. Take the stepladder from the left. (If it doesn’t work, go back one screen and try to reach the item above the lockers.)
8. Turn left. Use the stepladder to reach the top of the lockers. Take the knife.
9. Turn right twice. Clean up the papers on the floor to see this:
10. Cut open the box above the papers to access some tapes. Take one.
11. Open the instrument case to get bass strings.
12. Cut the checkered part with the knife to reveal this clue:
13. Read all the books on the bookshelf:
14. Turn left and tap on the poster to the right:
15. Keep tapping on it till it falls off the wall, then find it on the ground to see this clue:
16. Also look at the clue on the side of the control panel:
17. Go back to the lockers and open the right one to get a locked yellow box.
18.