When the first humans appeared on Earth they were all more or less equal creatures. But where is this peaceful time now? Every day we have to prove we are worth something, every minute we have to remember that we can't just stop and let everything go if we don't want to be left behind the others. But are we the competitors we seem to be? And is there anything left that makes us more or less united or even equal? In fact there is - despite all the walls we build around us we still have some tiny secrets that must be kept in darkness and silence. And these secrets actually make us closer than we might even think we are!