We tend to read Sylvia Plath's biography backward, starting from her final moments and flattening a ferocious life into a cautionary tale. This episode pushes against that myth with the factual record: a driven prodigy with an estimated IQ of 160 who published her first poem at eight, an overachiever who built her identity on total mastery of her craft. Her worldview was forged at eight years old when her father, an authoritarian Boston University entomologist who wrote the definitive textbook on bumblebees, died of untreated diabetes after stubbornly misdiagnosing himself with lung cancer. That preventable loss became the raw bedrock she mined for the rest of her life.

The episode follows her through the pressure-cooker years: the glossy disillusionment of a Mademoiselle guest editorship, the 1953 breakdown and the brutal psychiatric treat ...