Given the question: Build a movie plot around this: The narrator advises viewers not to engage in what? in conversation with any unknown individuals for the duration of the running time.
The answer is:
The film begins with a written disclaimer:"During the film you are about to see, you will be subject to subliminal messages and mild hypnosis.""This will cause you no physical harm or lasting effect, but if for any reason you lose control or feel that your mind is leaving your body -- leave the auditorium immediately."The disclaimer is accompanied by a narrator, who advises viewers to take caution regarding their surroundings once the film has begun, and not to engage in conversation with any unknown individuals for the duration of the running time.In the opening scene, John (Michael Lerner) is at home with his mother. While he is playing with the pet pigeons in their cages, a bird flies out and around the room, until he manages to catch it and return it to his mother. John goes to work at an eye clinic where a doctor (Nat Baker) shows John and a group of students (Gustavo Gili, Antonio Regueiro and Joaquin Ribas) a collection of eyeballs in jars. John then goes to a patient, named Caroline (Isabel Garcia Lorca), whom he tries to help put contact lenses in her eyes. John leaves after Caroline makes a comment about his eyes and a nurse (Patrice Manget) tells her that John is sensitive to such comments because John is a diabetic and he is slowly losing his vision. Caroline continues her complaints, and from home John's mother (Zelda Rubinstein) seems to listen to the conversation through a shell. "You'll be sorry!" John's mother says.Later, John is at home eating dinner and his mother plays a spiral on the turnstable, takes off John's thick-lenses glasses, and relaxes him through hypnosis. "Now you are with Mommy as one." John visits Caroline at her house, telling her that he has the correct prescription for her eyes. John lets himself into the house to ask Caroline to let him try out her new contact lenses. After fitting them in, Caroline seems content, so John apologizes about that morning and he suddenly pulls out a scalpel and slashes Caroline's throat. When Caroline's boyfriend (Jose Maria Chucarro) walks...