You think it'd be best to try the door again, after all everything in here is dirty and that's probably causing you to get even more dirty. You reassure yourself thinking a nice warm shower will sort everything out.
Trying the door handle, you find it's unlocked this time and hoping to get back into the corridor you open it to find... not the corridor. You open to see a typical bedroom. An unmade bed, a small TV mounted on the wall and a wardrobe with a couple other furnishings. Everything looks again everything is dirty and isn't going to get you clean.
You see a door in the other corner of the room. You rush to try it, and you end up being locked in this room now. You realise you've also left a greasy mark where you tried the door handle.
Looking around you notice a few clothes thrown onto the bed, some overflowing trash with what looks like pizza boxes hanging out and a pile of washing.