After 35 years of marriage Karla (Gila von Weitershausen) and Werner (Michael Mendl) had also come to realise that everyday life takes the shine off love a little. And now their daughter Conny (Suzan Anbeh) and her husband Stefan (Kai Scheve) had given them a present: a week’s holiday in a Wellness Hotel. Karla is on cloud nine, while Werner regards healing baths and healthy food as an ordeal to be suffered: in his view, Paradise myself consists is holiday in the open air with his camper van parked by a lake. So they reach an agreement: he will submit it to a week of wellness, and afterwards Karla went on a camping holiday with him. However, though they both try their best, it doesn't work out at all. Karla quickly becomes irritated by the campsite atmosphere and Werner's outdoor friends. Furious, she stormed off. The fact that her daughter’s family holiday with her husband and their two children Jule (Mathilde Bundschuh) and Max (Timon Straka) isn't working out as planned either, seems like a sign from the gods for Karla. The young parents find that although time is taken up with the children, and they don't have a single minute to discuss a few important matters -- so a huge argument seems inevitable. When Karla gets a call for help from her daughter seh hurries to help, taking charge of the children so that Conny and Stefan can finally have a few days to themselves in a romantic hotel. And the following day Werner also turns up at the holiday house with his camper. However, Werner has to sleep in the van, while Karla remains inside with the children. The two of them haven't made it up yet. The situation seems to come to a head when Werner meets the charming widow Ruth (Marlen Diekhoff), who shares his love of nature and adventurous spirit, while Karla gets to know the attractive Markus (Krystian Martinek). Is it really possible to forget 35 years of marriage so quickly? Or is there any truth to the old German proverb "old love never rusts".