A convent in Venezuela, 1929: on demand of her parents the young Maria is received as a nun in the order. The strict rules of the convent and the approaches of the other sisters won´t be her only problems soon. Because since a fresco is uncovered behind the walls of the chapel, an unholy force seems to find it´s way into the convent. Even the son of the lord himself comes down from the cross to push the nuns into a swirl of lust and occult rituals...