Five people in search of themselves. Arno Geiger's turbulent and romantic linguistic fireworks "Irrlichterloh" is an excellent remedy against the danger of falling asleep. A hot summer in the city, too hot for long hair. When Ann-Kathrin suddenly shows up with a new hairstyle, Jonas senses that changes are on the horizon. Not good ones. Jonas is a daydreamer, a womanizer, and a pantomime of the moment. During the day, he works for a sign factory, and at night he goes on tour with a violin case full of spray cans. However, after one of his nocturnal escapades, he discovers that his girlfriend has left him head over heels: she has run away with his boss, taking with her a painting that belongs to Jonas, a portrait of a girl that may be of great value, which the gallery owner Ira Constantin is also burning to get her hands on. Everything is falling apart for Jonas.