Mary Godwin Shelley’s most famous monster, of course, was the creature cobbled together by Dr. Frankenstein. But for the Upstart Theatre Group the story has a deeper resonance, reflecting Shelley’s experiences among the most notorious freethinkers of the romantic age. In this “devised” work, straightforward biography alternates with passages from the novel illustrated with music, dance, and tableaux. The spectacle leans toward the abstract: the monster’s hideous visage, for example, is represented by actors in reptilian half masks. But the intriguing parallels between the writer’s life and her fiction are realized with enough coherence, grace, and imagination to be persuasive. South theater, 10:30 PM.