.Summer school, summer jobs, girls, good friends. Sounds pretty normal for a kid in a small town in north central Missouri. All 17-year-old Mark Stone wants is to get a passing grade in his Shakespeare class, score some time with Deborah, and have fun with his best friends, Carl and Herb. But he has begun hearing voices, seeing people who aren't there, sensing something isn't quite right. Is it his imagination? Is it the pot he's been smoking just to be sociable? Or is it something more? Why isn't his friend Hilda as disturbed as he is? And why can't he get the lovely Deborah to just look at...