A coming-of-age story combined with a love interest between a boy and girl from different social stratum told during the years of teenage turmoil after high school the barriers of upbringing and taboos disintegrate. Each finds true love just before the party breaks up and will eventually learn to resolve the inner conflicts of values, proportion, and priorities.
After a successful robbery leaves famed thief Lupin III and his partner Jigen with nothing but a large amount of fake money, the so called "Goat Bills", he decides to track down the counterfeiter responsible - and steal any other treasures he may find in the Castle of Cagliostro, including the 'damsel in distress' he finds imprisoned there.
Egon plans to exploit knowledge gained during his latest term of incarceration. By stealing the unmanipulated financial records of DanInvest he obtains the majority of the stocks in the department store Magasin du Nord, just in time for their closing sale.
Oskar Matzerath, son of a local dealer, is a most unusual boy. Equipped with full intellect right from his birth he decides at his third birthday not to grow up as he sees the crazy world around him at the eve of World War II.