Raised in a convent by nuns, Bella, an emotionally unstable woman who is now well past the age of majority and once considered a religious vocation, finds work as a housekeeper for a wealthy horse breeder, who soon falls in love with her and marries her. Tragically, her husband dies on their wedding day. Bella then goes from one man to another, eventually committing a murder. Her husband's estate manager, who witnesses the crime, blackmails her into granting him sexual favours. Eventually, Bella meets a man she believes to be the true love of her life, only to discover that he is a friend of the estate manager. The two men plot to kill her.