Ji Geon-woo has been a thief since childhood, surviving with quick hands and sharp instincts. He isn’t greedy, stealing is simply a means to an end. One day, he sets his sights on a priceless necklace owned by Lee Yeshin, a troubled rich heir. To get close, Geon-woo infiltrates Yeshin’s home as a bodyguard.
At first, Yeshin appears reckless and self-indulgent, but Geon-woo soon realizes he is deeply lonely, suffering from chronic insomnia. As their relationship blurs, Yeshin grows possessive, and Geon-woo finds himself wanting to protect him, rather than just stealing from him.
But when Yeshin discovers Geon-woo’s true intentions, their fragile connection shatters. Now, Geon-woo must make a choice, walk away with the necklace or stay for Yeshin. Meanwhile, Ye-shin realizes that the only thing he truly wants isn’t wealth, but Geon-woo himself.