Time travel sounds exhausting, doesn't it? So perhaps I should've expected that getting through these stock 1960s plays would tire me out. The anti-war agit-prop "Viet Rock" hasn't aged particularly well while the senior sentimental comedy "The Gloaming, Oh My Darling" is almost offensively unreadable. The other two pieces ("Comings and Goings" and "Keep Tightly Closed in a Cool Dry Place") are structurally prismatic and would likely delight some improv actors looking for non-confining scripts. They kinda work and kinda don't and kinda remind me of Viola Spolin.