Mark leads a team of office workers whose memories have been surgically divided between their work and personal lives. When a mysterious colleague appears outside of work, it begins a journey to discover the truth about their jobs.
At Lumon Industries, employees undergo "severance," a procedure dividing their work and personal memories. Mark, a grieving team leader, begins to uncover the dark secrets of the company, forcing him and his coworkers to confront questions of identity, free will, and corporate control.