Series synopsis
Mobius, also known as 不眠日 is a Chinese drama mystery crime action & adventure television series that premiered on iQiyi on September 17, 2025. It ended on September 21, 2025. It was created by Zhang Xiaomao. It stars Bai Jingting, Janice Man Wing-San, Song Yang and Zhang Bojia.
In Hua'ao City, a brilliant detective with a flawless track record faces his toughest case yet when a string of seemingly perfect murders shakes the city. With no evidence, no witnesses, and a killer who vanishes without a trace, he must race against time to uncover the truth. As hidden dangers lurk in every corner, the line between hunter and hunted begins to blur.
Premise
In Hua'ao City, a brilliant detective with a flawless track record faces his toughest case yet when a string of seemingly perfect murders shakes the city. With no evidence, no witnesses, and a killer who vanishes without a trace, he must race against time to uncover the truth. As hidden dangers lurk in every corner, the line between hunter and hunted begins to blur.
Cast and characters
Leading cast
- Bai Jingting as Ding Qi
- Janice Man Wing-San as An Lan
- Song Yang as Mo Yuanzhi
- Zhang Bojia as Yu Shiya
- Cao Yangmingzhu as Tang Xin
- Han Li as Ye Kun
- Song Jiateng as Han Yufei
- Tian Lei as Fu Jun
Supporting cast
- Xia Minghao as Geng Zekai
- Gladys Li as Fang Lu
- Cai Xin as Wang Haoxin
- Wang Yifei as Gu Song
- Luo Yan as Yu Peishan
Guest cast
- Ricky Chan Po-Yuen as Duan Zheng
- Tai Bo as Han Song
- Raymond Wu as Huang Yuan
- Tang Xu as Tang Shaorong
- Wong Siu-Foon as An Lan's Mother
- Cheung Kwok-Keung as Ren Jilong
- Wang Lei as Secretary
- Xu Nannan as Ms. Cai
- Ho Chun-Hin as Old Wu
- Li Heli as Boss Robber
- Li Shuai as Second Robber
- Zeng Yi as Third Robber
Episodes
This series spans 1 season with 16 episodes.
| Season | Episodes | First aired | Last aired |
|---|---|---|---|
| Season 1 | 16 | September 17, 2025 | September 21, 2025 |
| Episode | Title | Air date |
|---|---|---|
| 1 |
Episode 1 During a brutal bank robbery, Ding Qi witnesses the deadly explosion and struggles to prevent further casualties in a repeating day. |
September 17, 2025 |
| 2 |
Episode 2 The suspicious death of a biotech scientist draws Ding Qi into a tangled investigation full of hidden explosives and unanswered questions. |
September 17, 2025 |
| 3 |
Episode 3 As Ding Qi tries to protect a key witness, tensions rise and a budding romance develops amid corporate and social obligations. |
September 17, 2025 |
Production
Release
| Original network/platform | iQiyi |
|---|---|
| First aired | September 17, 2025 |
| Last aired | September 21, 2025 |
| Runtime | 45 minutes |
| Status | ended |