Pittsburgh City Paper – The River is about a man, two women and fishing. Or is it? Part of the lure of this 2014 work by acclaimed British playwright Jez Butterworth is that the fisherman in whose remote cabin it’s set keeps both the women and the audience guessing what he’s about. Quantum Theatre (which previously produced Butterworth’s Parlour Song) stages the Pittsburgh premiere on the banks of the Allegheny, in the (indoor) dry dock of brand-new Aspinwall Riverfront Park. Adil Mansoor directs Andrew William Smith, Daina Michelle Griffith and Siovhan Christensen.