Though it places his own life in danger, a look-alike commoner secretly takes the place of a poisoned king to save his country from falling into chaos.

Young businesswoman Elyse Samford's life takes a turn when she inherits Samford Candy, a multi-billion dollar corporation, from her retired father. A trademark infringement lawsuit against a rival company brings Elyse to Higgins Attorneys and Sons, where Rob Carelli, a young, too-nice-for-his-own-good lawyer, is bullied by his boss, firm founder Carter Higgins, and his two arrogant sons. Despite his workplace woes, Rob becomes instantly smitten with Elyse. With Halloween just around the corner, Elyse invites the Higgins law firm staff to an opulent masked Halloween costume ball. Rob obeys an order to remain in the office working that night, but has a change of heart when his spunky, 12-year old niece Ruby, convinces him to attend the ball wearing a prince costume. After a magnificent waltz and magical exchange with the handsome "prince," Elyse yearns to locate this mysterious man and hopefully find the romance her life has been missing.

戴丽（卡曼妮·耶美肯 Khemanit Jamikorn 饰）是一个野心勃勃的女人，为了达到目的可以不择手段。她想方设法的接近一个名叫查亚侬（翁莎功·波拉玛塔功 Wongsakorn Poramathakorn 饰）的男人，虽然查亚侬已经有了一个非常恩爱的女友奥恩（甘卡诺·对贤格拉 Grace Karnklao Duaysienklao 饰），但奥恩的存在对于戴丽来说并不是阻碍。 　　实际上，戴丽和查亚侬在很小的时候就认识了，彼此之间是青梅竹马的玩伴，感情非常的要好。后来，戴丽因为家庭的缘故离开了，两人就此走上了截然不同的人生道路。实际上，戴丽接近查亚侬还有着另一个不为人知的目的。