The parents find their 25-year-old son Marten too lazy and too soft. Marten's girlfriend Anne thinks Marten is a very valuable person, but unfortunately she has broken up with him. Marten feels like a doormat with "Welcome" written on him. Everyone tramples on him. This changes when the shy young man has to look after his uncle's pet. Because this little creature called Elmchen gives him strength and makes him successful. However, in a very abysmal way.