Torstein would like to have been an Indian. Not just in his dreams, but for real. Torstein appreciates Jimi Hendrix as a musician, he even sings a song about Indians. By example of the American Indian way of life, Torstein would like to live a life in closer harmony with nature. Torstein is the filmmaker's younger brother and suffers from schizophrenia. Ellen Ugelstad has repeatedly filmed Tostein over the course of eight years. She has augmented her portrait with photos, drawings, old Super8 recordings, diary notes and recorded phone calls, all of which cast a light on Torstein's inner world. He speaks of his psychotic episodes and the therapeutical steps he has taken. "Indian Summer" is a touching study of a man who has been facing extraordinary challenges for 17 years. "I never defined my brother as a schizophrenic - to me he is just my brother. I see a connection between Torstein's psychotic behavior and what we call reality; Torstein's inner logic is not wrong to me. It is simply different from the perspective that everyone else calls normal."