The ideas are not terribly complicated, but illuminating them fully here would constitute a small spoiler. Suffice to say that, for anyone feeling steamrolled by the years, his words are reassuring even today. As deftly handled by director Rebecca Taichman (a 2017 Tony winner for Indecent), Priestley's metaphysics are poignant where, in less able hands, they could come off as annoyingly mystical. And while its Downton connection might fill seats, The Conways, despite some superficial period similarities, reveals its own complex pleasures - just give it time.