Y/n is a brilliant forensic investigator hunting a killer who leaves "gifts" only she can understand. That killer is Julian Vance, a cold billionaire heir by day and a predatory "cleaner" on a black superbike by night. He isn't just watching her; he’s eliminating her enemies, turning every crime scene into a bloody love letter designed for her eyes alone. In this deadly game of cat and mouse, Y/n must decide if she’s catching a monster or being consumed by her own muse.