Atomic Codon Swamp Loop

In 1966, a downriver missile range and a sleepy bayou produce a horror: a fallout-mutated amphibian carrying a scrambled "codon cipher"—the newly whispered key to heredity—spawns an endless temporal circuit. Each kill rewrites the creature's DNA and loops yesterday into tomorrow; each scientist's probe births the beast that birthed his probe. Cold-War hubris, transistor radios, and reel-to-reel lab logs collide as townsfolk, government men, and a haunted geneticist race a paradox where origin and outcome are one and the same.