"I got the Joy, Joy, Joy, Joy down in my heart, down in my heart. Down in my heart... I got the Joy, Joy, Joy, Joy, dooown innnn my heart! Down in my heaart tooodaay! Joy... Down in my heart... How about you? Oh. It's you... Your heart seems unhappy... Let's cheer it up.(*You got some Joy) Remember to take care of yourself. I'll check up on you soon."

Kevin's mother struggles to love her strange child, despite the increasingly dangerous things he says and does as he grows up. But Kevin is just getting started, and his final act will be beyond anything anyone imagined.