It is known that under their clothes all people are naked. Jesse Behring reminds us that all people are also abnormal. The American psychologist and journalist leads us past the windows of a sexual panopticon, in which we ourselves are reflected, and invites us to take a sober look at the oddities that make people different - and so similar. Probably, only by considering issues of gender from a scientific point of view, we can solve some of the eternal difficulties of humanity - or at least put the skeletons in order in our own closets.