Eugene O'Hare treads familiar ground with his confessional about alcoholism Eugene O'Hare's The Dry House is the kind of spare but oddly lyrical three-hander that would have made a good Wednesday Play back in the day. For Conor McPherson fans, it will seem like familiar terrain, with all the ingredients for an unusual domestic drama. Think, one interior, probably a humble home or a pub, where a small cast sit and dri…