There are three major stories going on in this movie
Horror
Tom takes his "sexual drive serum"
Tom's love Nancy Olson
Nancy gets Leper
horror at the window
Hero
the kid who flew out the window after he shot his jerk of a father
being spanked
giving his mother "the same look" as when he was spanked
flying out the window
Homo
Broom's wedding
Bolton getting spit on
Bolton showing Broom his scars (Bolton is played by James Lyons!! James edited/created Velvet Goldmine and Poison and is a close friend, and (at one time) lover of Todd's