The Brookedale Psychiatric Hospital is a crumbling institution which barely has enough money to remain open. Formerly a prison, it sits atop a warren of tunnels and sewage system viaducts. But Brookdale has a secret - a secret known by only one person. There's something living in the tunnels - something that's developed a taste for human blood...
After a misunderstanding aboard an airplane that escalates out of control, the mild-mannered Dave Buznik is ordered by Judge Daniels to attend anger management sessions run by Doctor Buddy Rydell, which are filled with highly eccentric and volatile men and women.
In an alternate turn of the 20th century, an attack on the Bank of England by men who appear to be German soldiers followed by an attack on a German Zeppelin factory by the same men this time dressed as British soldiers, leads Europe to the brink of war.
Two lost souls visiting Tokyo -- the young, neglected wife of a photographer and a washed-up movie star shooting a TV commercial -- find an odd solace and pensive freedom to be real in each other's company, away from their lives in America.
Fired from his band and hard up for cash, guitarist and vocalist Dewey Finn finagles his way into a job as a fourth-grade substitute teacher at a private school, where he secretly begins teaching his students the finer points of rock 'n' roll.