The salmon want to reproduce. While the salmon men swim upstream in a testosterone-driven race, the women indulge in a fertility dance at the source of the river. But the roles aren't as clearly defined as the men expect.
Everybody aspires to be a citizen of Perfect Town – but display a deficiency or a flaw and you will be stripped of your superior status and forced to the rear of the interminable line of those clamouring to get in.