Adrià is a boy who lives from village to village with his older brother and his older brother's girlfriend. He is mute, can't stand enclosed spaces, and finds it hard to keep his attention when spoken to. Adrià has a secret: on full moon nights, he can't sleep and wanders the streets.

Dani loves his girlfriend, Monica, but he is always late and has lost the expensive watch she gave him as a birthday present. Tired and disappointed by his lack of commitment, she breaks up with him. On the advice of his amateur psychologist friend, Elias, Dani sets off on an impossible quest to retrieve the watch, to prove his love to Monica and save their relationship.