In 2045, the future of synthetic living has finally arrived, but so too has the threat of a global machine war. Rising Hollywood star Sepideh Ahmadi never imagined she would transition to an artificial body, but when her longtime girlfriend Natasha develops a terminal illness, the choices become clear: either give up their physical bodies and stay together, or allow Natasha to die.

As a synthetic woman, Sepideh discovers there is more to being human than just her thoughts and memories. Smells are stronger, sensations are more nuanced. She is no longer anxious or nervous. She is no longer herself, and neither is Natasha.

Now, with a machine army threatening to invade California, crazed fans following her every move, and her new marriage slowly breaking apart, Sepideh must figure out who she will be in the centuries to come.

In a world where immortality can be bought, will the cost be more than just money?

Will it be our humanity?