An unseen person enters a taxi late at night. Suddenly the taxi driver is stabbed with a large metal knitting needle. From there we meet our female killer. Catalina is a very plain Jane looking young lady. She wears some geeky glasses and usually dresses very conservatively. She lives with her grandmother and they both seem to loathe men. Catalina’s grandmother mentions that her late daughter/Catalina’s mother was troubled by men and that cost her her life. Catalina and her mother resemble each other. At night, Catalina awakens by the vengeful spirit of her mother to advise her to go out and kill men. The kind that only want to take advantage.