Jacob Anderson is the reckless, tattooed heir to a multi-million-dollar empire. After one high-speed scandal too many, his father puts him under strict house arrest with a 24/7 personal handler assigned to tame his rebellious streak. ​Enter Cammie Ashton: a polished high-society heiress who seems harmless on the surface. But behind her crisp satin blouses lies a dangerous secret. Cammie is a elite, cold-blooded assassin—and taking the job as Jacob's handler is her ultimate cover story. ​What starts as bratty defiance and razor-sharp banter quickly spirals into a dangerous partnership. As Jacob uncovers her lethal secret, he doesn't run. Instead, he steps into her dark world, disguising himself to become her getaway driver and accomplice. But as an electric, slow-burn romance blazes between them, tragedy strikes. ​Cammie’s mother is mysteriously murdered on a business trip, and the police chief abruptly shuts down the investigation. Unbeknownst to Cammie, her own ruthless boss, Mr. Han, is orchestrating the massive cover-up to hide the killer's identity—all while keeping Cammie busy with endless hit contracts and secretly plotting to destroy the Anderson family. ​When a high-stakes mission goes horribly wrong and leaves Jacob in life-threatening danger, Cammie is forced to make a choice: complete her contract or save the man who stole her heart. Now, armed with grief and fury, Cammie and Jacob must dismantle a web of lies to take down her boss before he destroys everything they love.