Forced to replace her runaway half-sister at the altar, Lydia Carter marries Adrian Blackwood—a ruthless billionaire who never wanted her. Their marriage is a cold business deal, sealed with resentment and strict rules. Trapped in a luxurious mansion with a husband who despises her, Lydia must endure a life where love is forbidden and mistakes are unforgivable. But as secrets surface and emotions blur, will hatred be enough to keep their hearts apart?