The Silence Of The Lambs (1991) StoryLine :

FBI trainee Clarice Starling is pulled from her training at the FBI Academy at Quantico, Virginia by Jack Crawford of the Bureau’s Behavioral Science Unit. He assigns her to interview Hannibal Lecter, a former psychiatrist and incarcerated cannibalistic serial killer, whose insight might prove useful in the pursuit of a psychopath serial killer nicknamed “Buffalo Bill”, who kills young women and then removes the skin from their bodies.

Starling travels to the Baltimore State Hospital for the Criminally Insane, where she is led by Frederick Chilton to Lecter’s solitary quarters. Although initially pleasant and courteous, Lecter grows impatient with Starling’s attempts at “dissecting” him and rebuffs her. As she is leaving, one of the prisoners flicks semen at her. Lecter, who considers this act “unspeakably ugly”, calls Starling back and tells her to seek out an old patient of his. This leads her to a storage shed, where she discovers a man’s severed head with a sphinx moth lodged in its throat. She returns to Lecter, who tells her that the man is linked to Buffalo Bill. He offers to profile Buffalo Bill on the condition that he may be transferred away from Chilton, whom he detests.