高等法院暂委法官言惠知(佘诗曼 饰)正值事业高峰,但一宗案件令她人生逆转。为阻止社会出现更多“恶魔少年”,言官不惜放弃前途,主动降职担任少年法庭的裁判官。面对一宗又一宗严重的少年案件,她择善固执,坚持正义,也要救赎这些脱轨少年的人生。
In the small village of St. Mary Mead, Colonel and Mrs. Bantry, owner of the local manor - Gossington Hall is shocked when one morning a young lady's body is found in the library. They call in the police who soon run up against a brick wall, only finding out that the body is that of a dancer in London who the Bantry's didn't even know. But how and why was her body left in the library? To find out the truth, the Bantry's call in the help of their good friend and detective - Miss Jane Marple.