Set in 1975, Tom Hiddleston stars as successful physiologist, Dr. Robert Laing, who has recently moved in to the 25th floor of one of several new high-rise buildings in a not-quite-finished avant-garde apartment complex in London. The architect of the complex, an eccentric architect on the uppermost floor named Anthony Royal, has designed the buildings to never need to be part of the ground-level activity surrounding the buildings, as each one offers its own means of taking care of one's daily needs, from groceries, to schooling, to entertainment, to a host of other amenities. Although everyone pays the same rent money, the building also seems to have its own class system in terms of who lives on what floor, as the elites live in higher floors than those below. One of those below is Richard Wilder, a documentarian who begins to suspect that there are great inequities in the way the building is structured, threatening to expose it for what it is to the public at large. As the new building begins to show signs of faulty facilities in disrepair, anarchy begins to take hold The resultant chaos erupts into a battle between the haves and have-nots for whatever resources are left to be had within the walls of the structure.