In Brussels, Stefan, a young Romanian construction worker, is preparing to drive home for the upcoming summer holiday. As a migrant from the other side of Europe, Stefan feels displaced in Belgium and is unsure whether he'll return. He reminds himself that his nondescript apartment is 'home' and in a vague attempt to connect to his environment he wanders the streets at night. Then, a chance encounter with ShuXiu, a university professor who researches the mosses that grow in the region, takes him on a sublime detour from his homeward journey.