Set in the 1970s, this complex social drama revolves around Dr. Robert Laing, the newest resident of a luxurious apartment in one of London's high-tech concrete skyscraper whose lofty location places him amongst the upper class.
Laing quickly settles into high society life and meets the building's eccentric tenants: Charlotte (Miller), his upstairs neighbor and bohemian single mother; Wilder (Evans), a charismatic documentarian who lives with his pregnant wife Helen (Moss); and Mr. Royal (Irons), the enigmatic architect who designed the building.
Life seems like paradise to the solitude-seeking Laing. However, as power outages become more frequent and building flaws emerge, particularly on the lower floors, the regimented social strata begins to crumble and the building becomes a battlefield in a literal class war.