Santa Muerte, the skeletal folk saint known as Our Lady of Holy Death, has become one of Mexico's fastest-growing devotions, and this film goes looking for her followers in the places the Catholic Church would rather not acknowledge: home altars crowded with candles and cigarettes, prison cells, and neighborhoods where violence is routine. The Church has denounced the cult as satanic, but the people interviewed here describe her differently, as a saint who does not judge. Camera and interviews move among gang members, transvestites, drug addicts, and ordinary families who keep her image on a shelf and pray to her for protection, money, or survival until the next day. The film does not try to settle whether the devotion is heresy or faith, only to show what it looks like up close: the rituals, the offerings, the reasons people give for turning to a death figure instead of a conventional one. What emerges is a portrait of religion built from the bottom up, by people the official Church has largely written off.