Based on Eça de Queiroz's 1875 novel, the plot takes place in Leiria, Portugal, at the end of the 1860s, and follows the story of the forbidden passion between Amaro, a young priest, and Amélia, "the most beautiful girl in Leiria". Tense, emotional and rooted in personality conflicts, the series takes a critical look at society and the church in Portugal, in Leiria in the 19th century.