Narra la historia de Karl Koch, un hacker alemán conocido como Hagbard Celine, que en los años 80 vendió información al KGB en plena guerra fría. Sufría adicción por la cocaína y al que se le volaron los patos con el número 23 (tan recurrente en el cine y los paranoicos).En la historia se puede ver como el protagonista se relaciona con el Chaos Computer Club, el momento en el que decide escribir un troyano
Winter 1968. Historian Dr. Dallow is released from prison. He is still trying to cope with and understand why he was put behind bars for 21 months for defamation of the state. His supposed "crime:" for five minutes he accompanied a cabaret chanson on the piano. The film shows what "ordinary socialism" was like, letting the audience feel the threat under which the people in the GDR had to live over many years.
A small town shortly before the end of the GDR: 15-year-old Ulla lives with her mother in a dilapidated old building where not even the electricity works properly. Economy of scarcity and national bankruptcy are visible everywhere. Only higher party comrades live in the lap of luxury. When Ulla meets Winfried after a summer bathing trip, the two fall in love. Winfried is the son of an influential general director and owns things from West Germany that others only dream of: a computer, a games console, a walkman. On an excursion with her biology class, the high school student discovers that a dacha is being built in the middle of the nature reserve and the creek has been dammed. Winfried's father turns out to be the culprit, but the mayor is on his side. Ulla rebels against this environmental destruction connected to political corruption and organizes a protest. Her activism not only endangers her own future, but also her first great love.
