Katrin is a single mother of twins. When they find out that they owe their existence to a sperm donation, they persuade their mother to find their biological father.

• Sat.1
• Anica Dobra
• Richy Müller
• Katharina Ursinus
• Kai Ivo Baulitz
• Hans Peter Hallwachs
• Roswitha Schreiner
• Christian Goebel
• Caroline Redl