The Irish Rep is currently staging its fourth production since 2013 of Conor McPherson’s 1997 play The Weir, with several of the cast reprising roles. And yet there is nothing stale about this staging—instead, the play is brought to exhilarating life by a marvelous ensemble, under Ciarán O’Reilly’s assured direction. The Weir is essentially a collection of four ghost stories, which arise naturally out of the banter in a rural Irish pub, that ultimately reveal more about the loneliness of the people telling them than anything supernatural.