When Dorrit Wegner turns fifty, the government transfers her to a state-of-the-art facility where she can live out her days in comfort. Her apartment is furnished to her tastes, her meals expertly served, and all at the very reasonable non-negotiable price of one cardiopulmonary system. Once an outsider without family, derided by a society bent on productivity, Dorrit finds within The Unit the company of kindred spirits and a dignity conferred by 'use' in medical tests. But when Dorrit also finds love, her peaceful submission is blown apart and she must fight to escape before her 'final donation'.

Translation of: Enhet.