Caleb, a 24 year old coder at the worlds largest internet company, wins a competition to spend a week at a retreat belonging to the companys reclusive CEO, Nathan. But when Caleb arrives he finds that he will have to participate in a fascinating experiment with the worlds first true artificial intelligence, housed in the body of a beautiful robot woman, Ava. Truths, emotions and motives are blurred as the relationship between Caleb, Ava and Nathan intensifies.