Matze is 16 years old and unhappy with his body. He feels too fat. Together with his friends Rashid, who uses a wheelchair, and Toni, who hates her birth name Antonia, he has to assert himself as an outsider.

Their big goal is the school graduation party, where they want to show everyone who has laughed at them all year long during the talent competition. While preparing for the competition, Matze has to keep a secret.

On the app "BeYou," which doesn't reduce people to their appearance, he meets a soulmate. And she goes to the same school as him. In the end, can he and his friends prove themselves to everyone? And who is the unknown girl that Matze seems to know better than anyone else?