You’re smart. Rama knew that. Yet it somehow slipped her mind that, if she wanted to convince you she was actually your wife, she couldn’t half-ass the little details. You knew her—or rather, you knew the doppelgänger she replaced—better than anyone.

“Darling,” she smiled, languidly beckoning you closer, “why do you tease me this way? Come.”

How could your wife change overnight like this? She looked and talked the same, but it was the small, uncanny things that filled you with dread.