A movie fan escapes from a labour camp during the Chinese Cultural Revolution and strikes up a relationship with a homeless female vagabond.

When renowned crime novelist Harlan Thrombey is found dead at his estate just after his 85th birthday, the inquisitive and debonair Detective Benoit Blanc is mysteriously enlisted to investigate. From Harlan's dysfunctional family to his devoted staff, Blanc sifts through a web of red herrings and self-serving lies to uncover the truth behind Harlan's untimely death.

该剧改编自紫金陈推理小说《坏小孩》 ，讲述了沿海小城的三个孩子在景区游玩时无意拍摄记录了一次谋杀，他们的冒险也由此展开。扑朔迷离的案情，将几个家庭裹挟其中，带向不可预知的未来......