TV Beneath the Undertow Beneath the Undertow 8/10 by 1 users At the former Xuri Factory, a dismembered female body is discovered in an abandoned sewage pit. Veteran detective Lian Haiping and rookie officer Shi Qiangfeng, despite their differences, must work together to solve the case. Their investigation reveals unexpected social issues and brings to light an old case that complicates their personal and professional lives. Details Casts Posters Images Title Beneath the Undertow Alternative Titles 暗潮, Beneath The Undertow First Air Date 2025-07-31 Last Air Date 2025-08-04 Number of Episodes 19 Number of Seasons 1 Genres Drama, Crime, Networks iQiyi, Migu Video, Casts Chen Jianbin, Chen Ruoxuan, Sierra Li, Cheng Taishen, Mei Ting Plot Keywords , Lian Haiping Chen Jianbin Shi Qiangfeng Chen Ruoxuan Sui Xiao Sierra Li Shen Huazhang Cheng Taishen Jiang Mingyan Mei Ting