(previews start on Sept. 24; opens on Oct. 2) Though Conor McPherson occasionally allows his characters a bit of conversation, this Irish writer's gift is for the monologue. Irish Repertory Theater will show it to advantage when it revives Mr. McPherson's 2001 play, which interweaves the lives and speeches of three Irish men. Ciaran O'Reilly directs the multigenerational drama.