Two sisters are abruptly separated, the eldest, Hasna, struggles to find her identity and place in the world.

Munich, Germany, 1923. Two years have passed since Edward Elric was dragged from his own world to ours, leaving behind his country, his friends and his younger brother, Alphonse. Stripped of his alchemical powers, he has been all this time researching rocketry together with Alphonse Heiderich, a young man who resembles his own brother, hoping to one day find a way back home. His efforts so far had proven fruitless, but after lending a hand to a troubled gipsy girl, Edward is thrown in a series of events that can wreak havoc in both worlds. Meanwhile, at his own world, Alphonse Elric ventures deeper into the mysteries of alchemy in search for a way to reunite with his older brother.

In recent days, Rome has been the scene of an unusual event: when it rains, the manholes exhale a dense steam of unknown origin and composition. No one knows that those who breathe in the mysterious substance will have to deal with what they repress, their darkest instincts, their anger. Not even the Morel family. Since Cristina’s death in an accident a year earlier, the love of her husband Thomas and their son Enrico has given way to a forced cohabitation, while the youngest of the family, Barbara, would only like to see them united again as they were before. The accident could have been avoided, both Thomas and Enrico know it. Instead of taking responsibility and moving on, they stopped talking to each other. Now they are two souls full of rage, trapped in a Rome that resembles them: dark, nervous, on the verge of exploding.