Mona is fed up: while she keeps herself and her baby Bobby afloat with mini-jobs, Bobby's father celebrates his new girlfriend at every party in town. When Eddy announces his wedding, Mona sends him a smelly diaper - anonymously. Eddy catches on and sets off in search of the sender.
| Actor | Role |
|---|---|
 Ken DukenEddy Brennfleck | Eddy Brennfleck |
 Cosma Shiva HagenMona Müller | Mona Müller |
 Julie EngelbrechtEloise | Eloise |
 Uwe OchsenknechtMöbius | Möbius |
 Bjarne MädelKlopka | Klopka |
 Gisela SchneebergerInga Brennfleck | Inga Brennfleck |
 Mavie HörbigerEloise Engel | Eloise Engel |
 Martin BrambachKarl Engel | Karl Engel |
 Alexander ScheerVincent | Vincent |
 Melika ForoutanCarmen | Carmen |
 Claudia EisingerNikita | Nikita |