Caleb, a 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.

Ex Machina leans heavier on ideas than effects, but it's still a visually polished piece of work -- and an uncommonly engaging sci-fi feature.

'Ex Machina' is a visually striking sci-fi film with strong performances by Alicia Vikander, Oscar Isaac, and Domhnall Gleeson. It explores themes of artificial intelligence and ethics, though some find the pacing slow and plot predictable. The minimalist setting and philosophical questions are praised, but character development and plot holes are critiqued. The ending is divisive, yet the film's visual effects and cinematography are widely commended.