Bryon and Mark have been inseparable best friends from childhood, but now, at sixteen, they both sense they are growing apart. After establishing his popularity with the girls, Bryon fell seriously in love with Cathy, while Mark spent more time hustling and making lots of money from his secret activities. They were still inseparable, but a the split between the boys continued to grow. And then one day Bryon discovered the awful truth about Mark . . .