Deirdre Kinahan’s The Saviour is Irish Repertory Theatre’s second presentation within a year of the “world stage premiere” of a script written for online distribution during the COVID-19 pandemic and now retailored for in-person performance. The previous such work, Tracy Thorne’s Jack Was Kind, was acted as a solo by the author in the Irish Rep’s tiny basement venue in autumn 2022. The Saviour is on the company’s more capacious main stage, giving it a misleading sense of heft. Directed by Louise Lowe, the production features Marie Mullen, a Tony winner for Martin McDonagh’s memorable The Beauty Queen of Leenane. Like Jack Was Kind, The Saviour is a miniature drama intensely focused on up-to-the-moment societal problems.