According to Oleg Sentsov's play Numbers.

The world as an absurdly abstract one-room cosmos. Ten figures are practising daily rituals, walking in circles. They do not know who they are or where they come from, nor do they have names. The men wear odd numbers, the women even numbers. Their dating behaviour, like everything else, is subject to rules that are as strict as they are pointless. An omnipresent, godlike leader (The Great Zero) surveys the goings-on; judges are armed. This is a system of governance that leads to the elimination of all independence – but then an unplanned child disturbs the order.