After her parents divorced at a young age, magazine writer Amy Townsend’s (Amy Schumer) father tells her and her sister that monogamy just isn’t realistic. Since then, she has adopted promiscuity as her credo. Despite living a uninhibited life void of commitment, she gets into a rut. When she is unwillingly assigned to write a profile about a charming sports doctor Aaron Connors (Bill Hader), she starts to fall in love with him, which would be a first for her, and he starts to fall in love with her. With this, she starts to wonder if it’s time for her to change.
Sometime in the future, young coder Caleb Smith (Domhnall Gleeson) who works for one of the most prominent tech companies, believed he has been selected as a winner in a contest run by his company. Little did he know, he was selected to participate in an unorthodox experiment. Caleb soon travels from his office job to the isolated home/research facility of his boss, Nathan Bateman (Oscar Isaac) for a week visit. While hidden away in his home, Nathan was working on an advanced artificial intelligence named Ava (Alicia Vikander) and he then reveals to Caleb that the true purpose of his visit is to act as a consultant so he can administer a Turing Test: it’s purpose is to determine if an artificial intelligence’s personality and self-awareness is equal or greater than a human being or if it’s imperceptible to another human being.