Two boys are growing up in wartime London. Withdrawn scholarly Martin and Dovidl, a Polish refugee with a genius for the violin and for mischief and menace. Together they have the time of their lives, finding tragedy and triumph in the ruined city, until Dovidl disappears - for 40 years

An emotional detective story spread over two continents and a half-century. Beneath the film's stunning and pulsing musical revelations burn the horror of war, and the lost souls extinguished from history.