Family father Niklas Vandenberg's arrest as a business fraud suspect upsets the whole household's lives. Wife Laura suddenly has to return to professional life, without a credible CV, so she tries cab driving like her sassy sister Ziggy, but she loses her license after bursting into a cop car drunk. She turns dishwasher at the Italian restaurant La Grotta, and after the abused chef falls out, she steps in as cook. Preparing Niklas's trial, his attorney asks about a Milan trip with shared hotel rooms, which clarifies he had an affair with his secretary Tanja Welz, who turned him in spitefully when he refused to divorce. Niklas gets off with time served, but now has to move out, only son Moritz still dotes on him and daughter Nina bitterly blames her mother, who never told them everything but whom they caught in bed with hot restaurant barman and waiter Robert.
Cheating Notes
The wife starts working at a restaurant and kisses and has implied sex with the barman (56:15). Her two kids catch her in bed with the barman in the morning. IMDb says the runtime is 90 minutes while the stream below is just 76 minutes, so there could be an uncut version.
https://www.youtube.com/watch?v=P_xL8sdZOMk
Here is original IMDB duration of this TV movie in full HD definition
https://www.ardmediathek.de/video/film-im-ndr/das-beste-jahr-meines-lebens/ndr/Y3JpZDovL25kci5kZS9wcm9wbGFuXzE5NjA0ODc3NV9nYW56ZVNlbmR1bmc
and, german subtitles , too.
https://www.opensubtitles.org/hr/subtitles/8364513/das-beste-jahr-meines-lebens-de