If we remove all our natural impulses, how long do we have before our true personalities bite back?

Trapped inside a secure hospital after what may not be her first suicide attempt, Mya Dala's only contact with the outside world is a TV screen. One day it starts to show videos of her sweet, gentle boyfriend Marco - hand-in-hand with her doppelganger.

Convinced she has been replaced by a perfect clone, Mya plots how to get back to Marco with the help of a violently troubled inmate known as the Madboy.

But as she plans her escape, her memories of Marco become conflicted. Somewhere in the back of her mind, a long-forgotten version of Marco is emerging...Has his personality been replaced - or is this all in her head?

A clever speculative thriller for fans of Black Mirror that asks whether one day technology could perfect our brains, just as plastic surgery perfects our bodies. And whether we should let it...