Lotheim, a dump in the Ruhr. 19-year-old Greta ist good at bowling – at least when nobody’s watching. All of a sudden her father no longer is her father, and when searching for her real father she ends up discovering – Greta. She’s a substitute who never gets to play. Only her best friend, 20-year-old Helen, believes in her. Helen who looks for love in several men and in reality just wants it from her mother, Roberta.