1909. Miguel, a young teacher, is destined for a small mountain town on the border between Spain and Portugal: Lobosandaus, an inhospitable place, inhabited by distant people with remote traditions. It doesn't seem like the ideal place for someone like Miguel, who is determined to spread light and knowledge among his students. But reason cannot overpower desire, and as winter progresses, Miguel feels the darkness take over everything around him while his fascination with the enigmatic Dorinda grows. The unexpected death of an inhabitant will have a big impact on the city and will open the doors to a strange and ghostly presence.
There are more neurons in a human brain than particles in the universe. But if we could put one behind another, the only thing we would see would be a small river. An insignificant river and at the same time infinite. Under the streets of A Coruña there is a river that many have forgotten, but that from time to time overflows claiming what once was its course.
When Liliana decides to return to Uruguay she will have to face up to a new dilemma, perhaps the last great dilemma of her life: To choose between supporting a collective case for female prisoners, raped during the time of the dictatorship, or to reconcile with her son and be able to live peacefully as a mother and a grandmother.