Benno is a jerk. He works at a philatelist store, steals from his boss, bullies his co-worker and lies to his girlfriend. And he hates his downstairs neighbour, Sandra, a young barista with dreams of a musical future whose singing drives him to fits of bad behaviour. Then one day Benno begins to notice that he is, somehow, leaving sandy deposits everywhere he goes. Doctors and friends assure him it is all in his mind, but nonetheless, Benno is leaking, and it’s getting worse every day.