· No clues at all. You're alone in the forest. Figure it out yourself.
· Survival. The flashlight is dying. You need to look for batteries in pockets, drawers, under the floorboards. First aid kits are your only chance if you meet the "guest."
· The main question. Who was knocking? And why are the parts of your car scattered across the forest?
· Objective. Find everything. Reassemble the engine. Leave before the knocking happens again.
You just wanted to spend the night. Now you just want to survive until dawn.