A horrific explosion creates a dimensional portal between Tromaville and its dimensional mirror image, Amortville. While the Toxie is trapped in the mirror dimension, Tromaville comes under the control of his evil doppelganger, the Noxious Offender.
A man named Seligman finds a fainted wounded woman in an alley and he brings her home. She tells him that her name is Joe and that she is nymphomaniac. Joe tells her life and sexual experiences with hundreds of men since she was a young teenager while Seligman tells about his hobbies, such as fly fishing, reading about Fibonacci numbers or listening to organ music.
After killing her husband, Peggy Gravel and her murderous maid Grizelda wind up in the crazy town of Mortville, where Queen Carlotta presides over a sleazy collection of misfits.
A young man is plunged into a life of subterfuge, deceit and mistaken identity in pursuit of a femme fatale whose heart is never quite within his grasp.