Charming, brilliant, and deceptively dangerous Christian Harper is a monster dressed in the perfectly tailored suits of a gentleman. He feels next to nothing, operating entirely in the shadows of security and manipulation—until he becomes obsessed with the sweet, introverted social media influencer living downstairs, Stella Alonso. When a dangerous stalker threatens Stella's safety, Christian steps in to offer his protection, orchestrating a fake relationship that brings them into intimate proximity. As Stella slowly peels back the cold layers of Christian's dark soul, she uncovers a web of lies that could shatter her fragile trust, forcing them both to face the terrifying depths of their obsession.