Set in the not so distant future when poor air quality leads to people living mostly virtual lives. Carol is a dissatisfied career mother, struggling to find connection within her marriage to Gary and her child. With the day to day familiarity of their home and lives feeling increasingly claustrophobic, and worried she could be heading towards divorce, Carol leaps at the chance to get her life back on track by signing up for "DreamQuil", an avant-garde digital wellness retreat. When Carol returns home however, she discovers her family has been living with "Carol 2", a robot the corporation sent designed to help in her absence, and things take a mysterious and sinister turn.
