26-year-old Caleb works as a web programmer for a major internet group. He wins an in-house contest to spend a week in the mountains at the isolated home of his boss, Nathan. But Caleb was not invited to the hideaway to enjoy the beautiful scenery. He quickly realises that his presence is part of a fascinating experiment. Nathan’s residence is home to the world’s first Artificial Intelligence: the female robot Ava, and Caleb is expected to communicate with her and establish a connection to the android. It becomes increasingly difficult to establish how humans and machines differ when it comes to feelings, consciousness and sexuality.