Still living under the same roof, Moscow couple Boris and Zhenya are in the final stages of a bitter divorce. Both have already found new partners and as the insults pour down like rain in this toxic familial battle zone, they need to settle the matter of who gets custody of their 12-year-old only son. Unheard, unloved, and above all, unwanted, the introverted and unhappy boy feels that he is an intolerable burden with his parents unaware that he can hear every single word. As a result, when Boris and Zhenya finally realize that Alyosha has been missing for nearly two days, is it already too late? Is this a simple case of a runaway or something else?