The series follows smart, capable and by the book Grace Narayan (Anjli Mohindra), who was flying high as an inner-city police sergeant before being forced into a 'punishment posting' on the small, antiquated island of St. Jory. Confronted by the forgotten and unsolved case of missing teenage boy Cai, Grace quickly discovers that she must overcome scarce evidence, extraordinary local characters, and the island's strange cult history to uncover the truth.“三生路上可补天,乃是铁补天补得你的天,也是互相补天漏!你用男人的担当,来补她的三生路;她用钢铁一般的真情,用人间帝皇的天命皇气,来弥补你先前的不足,将你自己的三生路,生生扭转!”……