Being born a woman, feeling like a man, and deciding to cross the boundary between the genders. That today is the path taken by those known as trans-boys. In San Francisco, Paris and Barcelona, a four-way portrait of Lynnee, Kaleb, Rocco and Miguel, four individuals who embody and explore this fluidity of gender and challenge the logic of masculine-feminine and seeks to understand how this new way of living as a man may impact on man/woman relationships in general.