The lovable Chaotin Kati (Jessica Schwarz) and her husband, the physician Felix (Felix Klare), have had a happy relationship for five years...
But as the routine of everyday life sneaks in, Felix seems to have forgotten love and focused solely on his work. When Kati meets the unsuitable artist Mathias (Christoph Letkowski), she immediately crushes on him - and begins to doubt: Is Felix really the right man?
Does she really want to grow old with him?
Kati finds herself suddenly five years earlier, exactly one day before she met Felix for the first time. Linda (Pheline Roggan) is confronted by her best friend, Marlene (Elena Uhlig), and has to keep her inexplicable knowledge of the near future secret. Kati, however, gets a second chance in the search for the great happiness - and the unique opportunity to overthrow the fate in some things.