In before the lock?
Anyway, this reminds me of the movie Predestination or the short story by Robert A Heinlein called All You Zombies.
I don't really want to spoil it for those who haven't read/seen it, but the main character is one of those mentioned in the OP's post and it's a fun time travel story.
Anyway, this reminds me of the movie Predestination or the short story by Robert A Heinlein called All You Zombies.
I don't really want to spoil it for those who haven't read/seen it, but the main character is one of those mentioned in the OP's post and it's a fun time travel story.