Xavier Oliveira Monteiro (Adriano Luz) is a botanical researcher and university professor. He lives with his wife, children and a baby grandson in an apartment in the center of Lisbon. One day Xavier receives news of the death of his uncle, owner of a family manor in a village in the municipality of Seia. To publish a study on the flora of Beira Interior, he decides to move with his family to the house. On arriving at the village, he becomes friends with the locals, whom he perceives to be very superstitious and believers in matters related to the occult. At first Xavier tries to ignore it, but strange events with no logical explanation, but coinciding with some local beliefs begin to occur to him and his family. Xavier decides to investigate these beliefs to find some explanation. It is then that Vicente, a former village priest (José Pinto) reveals to him something dark and macabre that happened in the past, and which gave rise to a terrible curse that plagues the village and which is directly related to Xavier and his family.
