The story centers on Zhou Yan, a top female thief, who was imprisoned in Thailand five years ago for stealing the “Heart of the Earl.” After her release, she and her younger brother Zhou Hui rely on each other to get by in China. Just as Zhou Yan attempts to return to a peaceful life, she is once again drawn into the turbulent underworld of thieves. Through the clues surrounding a genius heir, the series unravels the layers of mystery behind the long-standing family of thieves.