"Weet ik niet zo goed..." tells the story of how Roos Rebergen, the young and eccentric Dutch singer/songwriter behind Roosbeef is forced by circumstance to move out of her parental home. Her parents' house turns out to be an old farm in the small town of Duiven; which in the last few years has been home to an underground theater and music festival. Her parents were supposed to occupy the farm temporarily for about a year, but the Rebergen has been living on the farm for 14 years when the municipal board eventually continues it's plans to demolish the farm and redevelop the area. Then Roos has to leave the farm and leave behind her youth at the same time.