Who is in Control?

Nala is a scientific experiment. She had another consciousness added to her brain, and she can't always control him.
Jonah is a the result of a scientific experiment. He was born in a test tube, and then grafted onto Nala's brain. As a certifiable insane psychopath, it can be hard to control him. And as he has no need to keep Nala's body alive, it's almost impossible.
Both want control, both want to live. Can either live? Can both? Who will be in control?

Cover by Paula_Zacque
Based on Halsey song, "Control"