Deep underground, the coal miner Mattheus and his young assistant Maël make a mystical discovery. As Mattheus dreams of a life above the ground, their bond slowly unravels. What was buried begins to surface and nothing will ever be the same.
A ten-year-old boy, for the first time, goes to a brass band rehearsal with his dad, the band's conductor. He is confronted by a version of his dad he is not used to.
