One Perfect Day is an Australian film released in 2004.
The central character of the film is Tommy Matisse; his name combines the title of The Who's 1969 rock opera Tommy and the last name of twentieth century French painter Henri Matisse.
Tommy is a Melbourne boy studying at the Royal Academy of Music in London. He is a violinist and composer who hears music in unusual sources such as the ambient noises of a train in the London Underground or the chirping of crickets. He is a rebel against the traditions of classical music and displays this by bringing a homeless woman living in the Underground on stage for a concert.
A sympathetic professor decides that he is the type of innovative artist needed to revive a dying opera artform. Having shocked opera's establishment, he returns home to Melbourne on the death of his younger sister Emma, who suffers a fatal overdose after experimenting with drugs at a rave dance party. He discovers a CD of her own mixes and decides to enter the genre of electronic music to follow the path she was pursuing in the hopes of discovering more about his sister and how she became involved in this dance world. Emma's death acts as a catalyst that drives