
Nope, totally different.
The original story is just a movie.
And this baby is just there to act.
And his parents, although they have same profession as the characters in that movie,
I believe they are good parents.
They both finished up their work, and came together to their nephew's house to pick up their baby.
And also offering their nephew to join them for Christmas party if he have no plan.
My guess is, one of the aunty used this family as inspiration to write the story of the original story.
But then I guess that aunty is twisted to used her own sister's family as characters in a twisted dark BL...
so in the AU the movie acting child is the main lead of the original story which is a movie in the alternate universe? damn that's a whole circle