The close friendship between Arthur and Felix is put to the test when one lends the other his health insurance card. Arthur finds out that Felix is terminally ill, but Felix doesn't know it yet. However, because he doesn't have the courage to break the bad news and bitter truth to his friend, he soon becomes entangled in a web of lies and suddenly the tables are turned: Felix, who is actually terminally ill, believes that the healthy Arthur is actually going to die soon. He selflessly agrees to care for Arthur and give him a good time in the supposedly last days of his life. This actually gives Arthur a new perspective on life and Felix also starts to change: He manages to open his heart and learns to love bit by bit.

Kurt (Til Schweiger) and Lena (Franziska Machens) move together into an old house outside the city that is in need of renovation in order to be closer to Kurt's six-year-old son, little Kurt (Levi Wolter), and ex-wife Jana (Jasmin Gerat). But before their patchwork family happiness can really begin, little Kurt is killed in an accident - leaving behind three adults who don't know how to live with this tragic loss.

Ava is far from happy about having to move in with her mother again after finishing college. A lot has changed since she was a child. Her old room is occupied by her mother's home exercise machine, and Ava's friends have their own lives to worry about. However, her mother has found a new boyfriend who is not much older than Ava herself. Ava finds herself without any prospects for the future and doesn't quite know what to do with her life.