A novel in which fate is the true protagonist. There is simply no other way to interpret the events that influence Anna and Marco first and then, even more deeply, their children.
The topic of twins, a recurring one in literature, is developed in a modern context with the war in the Middle East, NGOs and more serving as a background. In fact, Marco’s beautiful daughters, Alessandra and Alessia, are twins and they will remain involved in a deep, life-changing relationship with Andrea, Anna’s son. 
The Venetian atmosphere is the main setting for this story: the mountains, but especially Venice itself, the place where Andrea and Alessandra’s strange chance encounter takes place.