Simon (Bill Scarsgaard Bill Skarsg å rd) is a boy with Asperger's disease, he is a physics genius, but he can't stand physical contact with people; he has a severe obsessive-compulsive disorder and everything goes according to plan; if he is unhappy, he will use the tin bucket as a capsule and hide in it and refuse to come out. Simon's guardian is his brother Sam (Martin Wostrom Mar tin Wallstr ö m), and only Sam can understand him from an early age. Sam's girlfriend broke up angrily because she couldn't bear to live with the brothers. Seeing his brother immersed in depression and sadness, Simon, who has been taken care of, decides to take care of his brother once: he wants to help Sam find a new girlfriend in a scientific way.