In a cramped New York apartment, Ciel Vesper lives a dangerous double life. By day, he's the soft-spoken, housework-loving boyfriend of Mason Blake, quietly biding his time while hunting for proof that Mason framed him for plagiarism three years ago—destroying his promising design career. By night, he becomes Sylvie, the glamorous female livestreamer whose bold designs are quietly taking the fashion world by storm. When Lynx Ashford, the brooding new landlord and a celebrated designer, walks in mid-broadcast, Ciel's secret is laid bare. But Lynx isn't there to expose him—he's been searching for Sylvie for years, ever since her work pulled him out of a career-crushing slump. With a blackmail proposition—three weeks as his contract lover and muse—Lynx pulls Ciel into a tangled game of desire, secrets, and revenge that will unearth the truth and rewrite both their futures.