Shy pensioner Schorsch feels lonely. He therefore decides to share his retirement with a partner. Because he doesn't trust himself, he asks his friend Eugen to place a personal ad for him. When his daughter-in-law Trudel discovers the ad, she thinks Eugen himself wants to remarry and sees his entire inheritance dwindling. So she does everything in her power to prevent it. Karl Blemberle, a plumber called in because of water damage, gives her an idea...