About the title
The focus is on a group of young people carrying out a Catholic mission. When their car breaks down on a deserted highway in Mexico, they find themselves without communication under the scorching sun. Soon they reach an abandoned church, where they are met by its sole inhabitant, who warns them of danger. Despite his words, the friends decide to stay, unaware that the temple has become a refuge for the vengeful ghost of Sister Dolores. When the clairvoyant Maria lights a candle in the church, she becomes a vessel for the nun's spirit. Now they must uncover the secret of her past before the curse claims them all.