1916, Verdun. Two men, opposites in every way, find themselves sharing a shell crater: Raoul, a vengeful and somewhat simple French soldier, Franz, a German soldier, musician and humanist. With them, a cello.

The two enemies need each other to escape from this dark and sordid universe. The music and the soul of the cello will reconnect them with their humanity. They will have to forget their fears, overcome their hatred, and trust each other despite their differences.

In this humanist fable, which is more relevant today than ever, two men choose the cello over the bayonet, life over barbarism, the choice to resonate and reason...