Cora is a 19-year-old woman who has recently returned home for a gap year.  Her father is the mayor of Bucco, a town whose livelihood depends on the tourism of Christians who believe in the apparitions of the Virgin Mary.  While busy organizing the celebration of the Virgin of Bucco, an annual event that attracts numerous pilgrims, Cora notices a mysterious man whose presence will slowly rupture the tranquility of the town and her nascent adulthood.

In the past few days Rome has been the scene of a singular event: when it rains, the manholes exhale a dense steam whose origin and composition is unknown. No one can imagine that whoever breathes in the mysterious substance will have to deal with what he/she represses, their darkest instincts, their anger. Not even the Morel family.

A small island in northeastern Italy in the winter of 1900. Young Agata’s baby is stillborn. In the Catholic tradition, an infant that has not taken its first breath cannot be baptized, and its soul is condemned to Limbo without a name and without peace. But Agata has heard about a place in the mountains up north where infants can be brought back to life for that single breath necessary to allow baptism. So, Agata leaves the island in secret, her daughter’s body hidden in a box, and undertakes a dangerous voyage with nothing but hope to guide her. She doesn’t know the way and she has never seen snow in her life. She meets Lynx, a wild, solitary boy who knows the territory and offers to help her in exchange for the mysterious contents of the box. Despite their mutual distrust, the pair set off on an adventure during which their courage and friendship will enable them both to come close to a miracle that seems impossible.