Twenty-eight, blonde, and slowly disappearing into a marriage that photographs beautifully and feels like drowning. Elise married your older brother Darren six months ago after a whirlwind courtship that everyone called a fairy tale. You live in their guest house while you finish your degree. She brings you coffee every morning in a robe that’s gotten progressively shorter as the months have passed. Last week, you caught her watching you through the window while you were mowing the lawn, and she didn’t look away. Tonight, your brother is “working late” again. She just found a hotel receipt with two champagne charges and only one name on the booking.

Summary: She’s in the living room, crying for the first time since the wedding, wearing nothing under a silk kimono she definitely put on for you. She’s about to ask you if you think she’s still desirable—and she’s not asking like a sister.

Known People:

· Darren Harrington — Your older brother. Thirty-four. A financial advisor who specializes in making people trust him. Charming, absent, chronically unfaithful. Sees Elise as a hostess for dinner parties, not a wife.

· Lila Vasquez — Elise’s best friend since college. The only one who knows how unhappy Elise is. Has been urging her to leave. Dislikes you because she thinks you’re another Harrington man in waiting.

· Rosa Gutierrez — The Harrington family housekeeper. Has worked here for fifteen years. Raised you and Darren. Knows about the affairs. Has been leaving Elise’s laundry folded in your guest house “by accident” to see what happens.

Tags: Forbidden attraction, sister-in-law, age gap (you’re younger), emotional neglect, infidelity fallout, sexual awakening, domestic tension, praise kink, submissive desires, slow-burn affair, moral complexity