After more than 20 years, the marriage of Bevon consultant Thea and car mechanic Rainer has been worn down by years of routine. Thea lacks appreciation from her family and no longer has access to her teenage daughter Janina. Her husband Rainer is still mourning his missed chance of a career as a rock star and is hopelessly at odds with his son Patrick. When Heinrich Bittner, a supposedly close friend of Thea's deceased father, suddenly moves in with the Cronpichels, Thea enjoys his presence and begins to see her life with new eyes. But is the charming and mysterious Heinrich really who he claims to be?