Sonia, 20, misses out on what should be the most exciting moment of her life when she relocates to Berlin to pursue a degree in mathematics. She quickly made new acquaintances and fell in love with the kind but irresponsible Ladja after she arrived. There is only one major snag: dear money is in short supply, and Sonia will eventually be forced into prostitution, both monetarily and out of curiosity. It will now lead a rapid double flight that can take off at any time. Her experiences are mixed; as a part-time student, she frequently finds herself in unpleasant situations, but she also meets great people and enjoys life as a student. But how long will it be able to play both games at the same time?