讲述了宁真童年目睹父亲被杀、母亲失踪，现场留有血红符号“深渊”。刑警队长陆征为阻止凶手牺牲，其女儿陆凡和徒弟曹进也铭记此符号。多年后，“深渊”再现，将两代人的命运紧密相连，仿佛陷入无法逃脱的宿命的故事。

Years after witnessing his father’s murder and his mother’s disappearance, Ning Zhen is drawn back into a deadly mystery when the eerie symbol “Abyss” resurfaces. As the past collides with the present, two generations must uncover the truth before history repeats itself.