Pretty Poison (1968)

Pretty Poison (1968) A formerly institutionalized young man (Anthony Perkins) meets up with a cute, sexy high school cheerleader (Tuesday Weld) and pretends to be a CIA agent to get her interested in him while she responds to his fantasy all too willingly. This, combined with her adult craving for sensual excitement, adds up to a potentially explosive pairing indeed. And explode it does.