After Detective David King's wife is inexplicably murdered in his own home, psychic medium Grace Lee gets caught-up in the aftermath. With no signs of a break-in, the evidence seemingly points to one man. Alliances are formed, enemies are made, and everything they believed they understood about their world is destroyed.

The film tells the story of Mosley, a "thoriphant" who rebels against his life of servitude and embarks on a treacherous journey to find the fabled city of Uprights.