The aloof CEO secretly pestered me

A secretary's life unravels after she begins receiving disturbing messages from an anonymous stalker who knows every detail about her—even the underwear she's wearing. Trapped between her abusive boss and her cheating husband, she divorces and leaves with her son, only to discover the child is actually her boss's from five years ago. As the stalker's threats escalate, she heads to a hotel to uncover the shocking truth behind the mysterious watcher.