Slinky: The Cult That Stole Its InventorA toy empire saved by the wife left behind in debt

From the show

The Secret Life of Objects

Naval engineer Richard James invented a walking spring by accident, but a mid-life religious crisis led him to abandon his family and company for a life in Bolivia. The survival of this iconic toy rests entirely on Betty James, who faced bankruptcy and betrayal to turn a coil of wire into a global phenomenon.