On the death of his father, Tim Webber returns to his childhood village in Somerset to find something sinister is disturbing the idyllic peace of the villagers.

Caleb, a 26 year old coder at the world's largest internet company, wins a competition to spend a week at a private mountain retreat belonging to Nathan, the reclusive CEO of the company. But when Caleb arrives at the remote location he finds that he will have to participate in a strange and fascinating experiment in which he must interact with the world's first true artificial intelligence, housed in the body of a beautiful robot girl.