改编自团子来袭在晋江连载的小说《归鸾》

Lu Nanyi, the daughter of a wealthy merchant, and Lin Qingqiu, from a distinguished family, grew up as childhood sweethearts. However, Lin Qingqiu was betrothed to another due to his parents' arrangement, though he still loved Lu Nanyi. They planned to elope on his wedding day but were tricked into believing the other had abandoned them, leading to their heartbreaking separation. A year later, Lin Qingqiu became the magistrate of Jinzhou County, seeking Lu Nanyi, while she gained fame as a storywriter. A murder case in Liu Zhou mirrored Lu Nanyi's stories, putting her under suspicion. As Lin Qingqiu investigated, the former lovers reunited, rekindling their old flame amidst the tension of avenging their past heartbreaks. However, the quest for the real killer complicates their reunion and raises the question: can their fractured relationship truly heal?

一起下水道的凶案，让刑警队长徐骁和老刑警林国强碰到一起，两人探案手法风格迥异，但因为对真相和正义的共同追求，逐渐弥合了观点上的分歧，结成亦师亦友的老少搭档。在破案的过程中并不顺利，在考古学者陈楠的帮助下，他们发现作案的凶手有着某种邪恶的思想，凶手难觅、迷雾难驱，他们虽分歧不断，但仍朝着一致的目标倾力探寻。最终使凶手伏法。