Impro Theatre’s second annual tribute to Rod Serling’s “Night Gallery” at this year’s Hollywood Fringe Festival focuses on three sci-fi/horror stories. Its “A Haunting Revue II” features stories about an adopted extraterrestrial in “Birds of a Feather,” a mysterious big brother in “The Lateness of the Hours” and workplace creepiness in “The Flight or Flight Response.” Though set design is minimal, each vignette has its own distinct visual identity. Lighting helps elevate the

According to its website, Impro Theatre “creates completely improvised, full-length plays in the styles of the world’s greatest...