Frankie, Jonny & die anderen (1993)

Bored by the monotony of East Frisia, Frankie, Jonny, and three friends break into a store, steal Japanese martial arts equipment—and almost get caught. At their meeting place in an abandoned factory, they conspire to form a ninja cult: discretion and restraint, yet highly focused. Jonny and the others are satisfied with the small changes to their usual routine. Only Frankie wants more. And then there's the blonde co-worker at the auto repair shop who has a crush on Alain Delon. Frankie blushes and gets his first date. The boys plan the big coup, training diligently and secretly. Shadow fighters come at night...