Royal Tenenbaum (Gene Hackman) and his wife separated at the age of 45. He went to live in a hotel alone. His wife Etheline (Anjelica Huston) who raised her children alone put all her focus on the cultivation of her children's talents. As expected, their three children are all geniuses. She wrote a book about this - "The Family of Geniuses". The eldest son Chas (Ben Stiller) was able to plan business at the age of 12, purchased real estate in junior high school, and had an extraordinary understanding of finance. The second daughter Margot (Gwyneth Paltrow) was adopted at the age of two. This topic was nagging by her father all her life, so that Matgot was a little neurotic. This talented playwright won the Warrior Award at the age of 9. Richie (Luke Wilson) has been a champion tennis player since the third grade. He likes to form a band, collect car models and paint as an amateur. He turned professional at the age of 17 and won the US Open for three consecutive years. Time flies. The parents have been separated for 20 years. The three genius children have grown up. Chas lost his wife in a plane crash and has been living in panic with his two children. Matgot locked herself in the bathroom all day and didn't talk to her husband. There has been no new script for 9 years. Richie is preparing for a year's voyage on the sea. All this was interrupted by a sudden news from Royal: he had cancer and only had 6 weeks left to live. He wanted to spend the last time with his family. This genius family reunited again, and interesting things happened in an endless stream.