The Sinful Nuns of Saint Valentine

Lucita has been locked away in a convent by her family in order to keep her away from her lover, Esteban. The pair make plans to elope, but Esteban is accused of heresy before Lucita can escape. Hiding in the convent, Esteban discovers the horrifying depravity of the covent's abbess, Sister Incarnation. Can Esteban rescue his love from this madhouse before the inquisitor discovers what is going on and has everyone executed?

• 
  Sergio Grieco
• 
  Mario Garriba
• 
  Massimo Carocci

• 
  Françoise Prévost
  The Abbess
• 
  Jenny Tamburi
  Lucita Fuentes
• 
  Paolo Malco
  Esteban Albornos
• 
  Franco Ressel
  Alfonso Fuentes, Lucita's Father
• 
  Corrado Gaipa
  Honorio de Mendoza, l'Inquisitore
• 
  Gino Rocchetti
  Joaquin, Sagrestano e Giardiniere
• 
  Pier Giovanni Anchisi
  Isidro
• 
  Calisto Calisti
• 
  Aldina Martano
  Sister Rosario
• 
  Bruna Beani
  Josefa de Olmeda
• 
  Barbara Herrera
• 
  María Luisa Sala
• 
  Adriana Facchetti
• 
  Dada Gallotti
• 
  Cinzia Greco
• 
  Eleonora Spinelli
• 
  Attilio Dottesio
• 
  Teresa Rossi Passante
  Lucita's Mother
• 
  Carla Mancini
  (credit only)
• 
  Omero Capanna
  Fencing Nobleman (uncredited)