Christian (Bang) is a divorced but devoted father of two, and the respected curator of a contemporary art museum in Stockholm. He's gearing up to launch their next show, ‘The Square’, a daring installation examining altruism and our duty to help others. However, Christian's own views on social responsibility are put to the test when he becomes the victim of a scam, forcing him to question the world around him and his place within it. Meanwhile, a shocking viral stunt cooked up by the museum's PR agency is met with public outcry, sending Christian – and the museum – into an existential crisis.