'I have sinned a rapturous sin'...so begins the first poem by Iranian poet Forugh Farrokhzad. Published when she was just 20, the poem tells the story of a sexual encounter with someone who wasn't her husband - a taboo subject now but even more shocking in the conservative society of 1950s Iran. The film pays homage to the iconoclast who changed how Iranians view women's desire and the poem which launched her career.