Mystery Box

I watched a video about JJ Abrams, and he makes TV shows and movies mysterious because of a box he got at a magic shop called a Mystery Box. It is full of magic supplies but he doesn't know what because he never opened it, why? Because it resembles infinite possibility, and if you open it, that possibility is gone because you've seen what it is.

An idea from the show Lost which is a Mystery Box was the Man in Black becoming John Locke. Everyone thought that John came back from the dead until he stood next to the real John's body.

Here's an idea from another show which is also a Mystery Box.In the show "The Lost Room", the guy lost his daughter in a room which is behind every door in the world if you use the key. Also, there were other things like a time-stopping comb, and a bus ticket that teleports you.

The idea of a story I just thought of has a Mystery Box too. There was a man created with seven souls, and one began to wonder why he only remembered Mondays. He then found out about the others and tried to get rid of them. He communicates with the others by sending emails to himself. To get rid of the others, he has to find the seven soulless men and match them with the right soul.