Jack and Laura Mann have built a marriage that works — against all odds. She is a lesbian, he is gay, yet together they have forged a life of quiet love and mutual respect in 1960s Chicago. When a mysterious stranger named Winkler contacts them with news of their dear friends Page and Sunny Pringle, they are drawn back into the drama of a union far more shocking than their own.

Page and Sunny were the golden couple — handsome, brilliant, and deeply in love. Their courtship was a whirlwind of stolen glances and moonlit confessions. But barely seven months after the wedding, something tore them apart. Now, as Winkler gently probes, the Manns must revisit the story of a marriage so passionate it defied convention, yet so fragile it threatened to destroy everyone touched by it. What secret could turn a perfect love into an illegal and horrifying mistake?