chunk: Roy "Tin Cup" McAvoy (Kevin Costner) is a former golf prodigy who has little ambition. He owns a driving range in West Texas, where he drinks and hangs out with his pal Romeo Posar (Cheech Marin) and their friends. Dr. Molly Griswold (Rene Russo), a clinical psychologist, wants a golf lesson. She asks Roy because he knows her boyfriend David Simms (Don Johnson), a top professional golfer. Roy is immediately attracted to her, but she sees through his charm and resists.