Two young women living in a convent become possessed by the devil after meeting a gypsy in the woods and cause disruption in the convent. This Mexican film revolves around the themes of devil possession and exorcisim, but what makes this film intriguing are the sets that produce a convent in a cave with nuns in strange costumes. There is blood and nudity, particularly the exorcism scene. The film is disturbing despite lots of screaming and there is a good performance from Tina Romero in the title role.