It's the 1940's, in the dusty town of Torres Mochas, the feeling of exhilaration and anticipation spreads through the air. The arrival of the enigmatic American who is expected to marry the youngest of the 5 "Virgin Josefitas" is on everybody's mind.
After the death of her parents, a young girl arrives at a convent and brings a sinister presence with her. Is it her enigmatic imaginary friend, Alucarda, who is to blame? Or is there a satanic force at work?