Olga is an only daughter and she must take care of her father, Mr. Arturo, an irascible man of a hard character who suffers from illness. Exhausted by her job at the law firm, she needs someone to look after her at night and she calls to the last person her father wants to see: Sister Inés, a nun, Servant of Mary. The film narrates the beginnings of the Servants of Mary, a reli...