It's about a class trip. It's about 240 euros and the question of who will organize the bus. Twenty-two parents of class 9b file into a classroom for what should be a routine parents' evening - the last one before their children move on. But four years of small slights, private messages and things left unsaid have been quietly piling up, and tonight they finally surface. In real time and within four walls, a harmless agenda item turns into something no one can take back, and by the time the evening ends, one mother will not leave the building. A tense, claustrophobic chamber play about twenty ordinary adults and the polite savagery just beneath the surface.