Nashville knows Jessica Blank and Erik Jensen’s intense examination of capital punishment and criminal justice. Their true stories of death-row inmates who were eventually proven innocent by DNA testing — or because of the subsequent confessions of the truly guilty — were first presented locally by Steve Earle and his BroadAxe Theatre in early 2004 at The Belcourt. Then, in 2006, there was a one-night-only performance at Vanderbilt featuring the national touring company of The Actor’s Gang, Tim Robbins’ progressive, L.A-based theater ensemble. This new mounting — part of Christ Church Cathedral’s Sacred Space for the City arts series — gathers many of Music City’s vital human resources, including veteran director Ted Swindley and actors representing Nashville Shakespeare Festival and Destiny Theatre Experience. Among them are Ross Bolen, Michael Roark, Nettie Kraft, Shawn Whitsell, David Chattam, Kenneth W. Dozier and five others. The subject matter is decidedly mature, with the tough portraits of the wrongly imprisoned — including Kerry Max Cook, jailed in Texas for 22 long years — considered not suitable for children.