You are lying on the bed and ready to sleep.

Suddenly, you hear several knocks on your door.

"It might be one of the hotel staff. I have to question him why the room is so down at heel." 

Therefore, you open the door.

Nobody is there. Then who knocked your door? Is this another prank? You are getting extremely angry, when you see a wooden box on the floor.

You take the box and close the door.

After a moment of hesitation, you decide to open the box.