A tour of the complex and captivating spaces of human desire, where men and women express their inner worlds, where the purest affections play and where we glimpse the strength of the passions of love. Crucial issues of man: the biology and sexual behavior, "" sexual normalcy "" sexuality understood as archetypal male and female sexuality often regarded as enigmatic, the sexual identity formation and rites of passage, the establishment of the trend towards either sex, the border territory of transsexuality and extreme passions.