Bold new American plays by unestablished dramatists too seldom make it to Broadway, so this commercially risky endeavor - a challenge approached head-on by producers in their amusing marketing campaign - is to be applauded. The show also brings a welcome breath of fresh air via a director, Moritz von Stuelpnagel, new to the commercial theater mainstream, and a talented ensemble of five actors, only one of whom, Marc Kudisch, is a Broadway regular. The sharp production has evolved over two hit off-Broadway incarnations, increasing in size with each move, and it now sits quite snugly in the still-intimate confines of the Booth Theatre...Director von Stuelpnagel and his terrific cast tackle this darkly funny material with a shrewd balance of heightened reality, warped sitcom and underlying pathos, landing all the jokes while never denying the genuine sorrow and anger driving both Jason and Margery to such erratic behavior...The five actors couldn't be better...But the real virtuoso performance is Boyer's. Whether trembling with fear as the deeply unhappy, reedy-voiced Jason or with power-crazed tyranny, wild irreverence and thundering rage as Tyrone, he creates two entirely distinct characters that give the illusion of existing independently of one another. Together, they somehow add up to one messed-up but affectingly real kid. Forgive the pun, but Boyer deserves a big hand.