Outwardly, Emma is the perfect good girl, and Zane is the school's undisputed heartthrob. When their parents suddenly marry, they go from sworn enemies to unwilling step-siblings. But behind closed doors, tension turns into temptation. A dark, forbidden desire begins to simmer beneath every glare and whispered insult. When Emma gets pulled into the dangerous rivalry of the "Big Four," every twist and misunderstanding only brings them closer. With one obstacle after another, where will this secret obsession lead?