Caleb, a coder at the world's largest Internet company, wins a competition to spend a week at a retreat belonging to the company's reclusive CEO, Nathan. But when Caleb arrives he finds that he will have to participate in a fascinating experiment with the world's 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.

Special features: Through the looking glass: creating "Ex machina" 5-part featurette; SXSW Q&A with cast and crew; 8 behind-the-scenes vignettes.