City on the Edge of Tomorrow

An autistic boy is taken in the middle of the night by something made from blackness that drags him into the attic and through a portal to a different world. His father is not two steps behind, struggling through an alien landscape where every thought, every whim can be turned into reality. As he searches desperately for his son, he faces an enemy intent on stopping him no matter the cost: an enemy capable of changing his appearance, an enemy who is always one step ahead, an enemy who can turn the very light into darkness.

How far would you go to save your son?