Liv is 9 years old. Her mother passed away many years ago, and only now, after a long time, her father has found a new partner - Jenz. The new family are having a housewarming for the new boyfriend. Guests have been invited and Jenz has made a gorgeous chocolate cake. Liv wants to hang out with the grown-ups and sing karaoke, eat cake and have fun - but they are too occupied with themselves. Liv does not get the attention she thinks she deserves and decides to strike back at the grown-ups.