NEED TO KNOW

Wisconsin teenager Evelyn Hartley disappeared in October 1953

She was babysitting at the time of her disappearance

Hartley, played by Addison Rae, is depicted in Netflix's Monster: The Ed Gein Story

One theory about Evelyn Hartley's disappearance is being told in Netflix’s Monster: The Ed Gein Story .

The third season of Ryan Murphy 's Monster anthology series, which premiered on Oct. 3, explores the life and crimes of Ed Gein ( Charlie Hunnam ) — the infamous American murderer from Wisconsin. In the show, Addison Rae plays one of Gein's victims — Evelyn Hartley, a bright, small-town babysitter whose mysterious disappearance becomes a key thread in the series.

While the storyline between Hartley and Gein is fictionalized for dramatic effect, in real

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