1901年，意大利的卡尔尼亚。在一个饥荒和饥饿的黑暗时期，15岁的阿加塔生下了一个死胎。她希望能够拯救他的灵魂免于炼狱，于是她踏上了前往帕劳圣殿的绝望之旅。她听说有些修女能够让死胎在短暂的一口气时间内复活，足够让孩子接受洗礼。

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.