Caleb, a young programmer at the world’s largest internet company, wins a competition to spend a week at a private mountain retreat of Nathan, the reclusive CEO of the company. When Caleb arrives he finds that he will have to participate in a fascinating experiment in which he must interact with Ava, the world’s first true artificial intelligence, housed in the body of a beautiful robot girl.

See this futuristic site on ex machina.

Interact with Ava here.