An ancient legend has it that if you manage to reach the top of Arashiyama at dusk on the fourth full moon day of the year, the gods will grant you a wish. That's why little Shin and Sumie run away from their grandmother's house to go to "the mountain of desires" and ask the gods to make their parents return from their "long journey through the sky". What they do not imagine is that in Arashiyama something more than gods awaits them.

A series of violent murders shakes the tranquility of the inhabitants of London; apparently, all crimes have one thing in common: water. Will Inspector Kolt be able to unravel the mystery behind them? But what if you were a murderer and didn't know it?

The Sagrada Familia has collapsed and, with it, something has broken inside Elda, to the point of flying back from Kobe to Barcelona to reconcile with a painful past. And it is then, among the streets of Barcelona, that she remembers her life in the 90s with Jules and Hiroshi, his roommates of the time. Now doubts corrode her: Did she make the right decisions? What remains of her youth after more than thirty years on the run from it?