Ahnungslose töten besser (2021)

Is Nagihan psychically ill? The peace band "Friedensband" is near the end - without their singer further concerts seem to be not possible anymore. While searching for the source and impact the band members get caught inside a network of conspiracy and intrigues. There they find horrifying connections between medicine, politic, media and cellphone industry. Is their friendship strong enough to defy these giants?