LOL, now I have more questions:

1. Why do you need a keyhole on the inside as well as a manual knob for locking it?
2. How does Zhao Xinci lock up after himself when he leaves?
3. Is it normal to have a handle that's fixed on the outside but articulated on the inside ETA: When it's the same kind of handle?
4. At the end of ep 14, Shen Wei gets out his key, vaguely moves it towards the lock, and then opens the door with the handle. Is the vague move a TV thing, or is he using dark energy? (Either way, the fact that he unlocks it and then uses the handle to open the door suggests to me it's not a spring latch.)

:D :D :D