Near the age of 70, Peter has long resigned himself to a lonely, isolated existence following a broken heart decades prior. His quiet life is upended when he shares a passionate, spontaneous encounter in a restaurant kitchen with Isabel, a vibrant 32-year-old waitress. The fling quickly deepens into genuine love, prompting Isabel to abandon her fiancé, Jan, on their actual wedding day to be with Peter. However, their unconventional romance suffers a catastrophic blow when Peter is finally introduced to Isabel's parents—only to discover that her mother, Katharina, is the very woman whose betrayal drove him into hiding thirty years ago.