In 1864, the Spanish poet Gustavo Adolfo Bécquer (1836-70), suffering from health problems, retires to the monastery of Veruela. Far from the noise and worldly activity of the capital, he immerses himself in the landscape of the mysterious Moncayo mountain. There, he discovers a new world full of legends that converge in a small village located at the foot of the mountain: Trasmoz, the Village of the Witches, the only officially cursed village in Spain.

Lucas, a six year old boy, enjoys a summer day with his family and with the visit of his aunt Ines and her partner, until they all decide to go for a walk.