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Mobius (不眠日 / Bu Mian Ri) – director, cast, plot and streaming details

Michelle Topham September 19, 2025

Mobius premiere date poster

Chinese Title: 不眠日 (Bu Mian Ri)
English Title: Mobius
Also Known As: Ni Shi Zhen Cha Zu
Genre: Sci-Fi, Mystery, Action, Thriller
Episodes: 16
Director: Liu Zhang Mu
Screenwriters: Bi Qiang
Original Work: Adapted from the novel “Ni Shi Zhen Cha Zu” (逆时侦查组) by Zhang Xiao Mao.

Plot Synopsis

A bank bombing shatters the tranquility of Hua’ao City. Police officer Ding Qi (Bai Jing Ting) stands calmly at the horrific scene. He knows this isn’t the “final ending,” but rather a “cycle day,” where the world randomly enters five consecutive cycles, rewinding to the previous day at midnight.

Ordinary people are oblivious, but he, with his ability to sense time loops, repeatedly solves bizarre cases. Each new cycle begins, revealing increasingly strange occurrences: multiple executives of a biotechnology group die in succession, accompanied by a mysterious squid-like warning of death, and unexpected events unfold frequently.

Beneath the seemingly mechanical repetition of daily life, a conspiracy gradually emerges. Ding Qi also discovers that he is not the only one who controls the “time key.”

As multiple time loop perceivers manipulate spacetime, the final showdown on the fifth cycle day will unveil all the mysteries for the audience.

Main Cast & Characters

Lead Cast

  • Bai Jing Ting as Ding Qi
  • Janice Man as An Lan
  • Song Yang as Mo Yuan Zhi

Supporting Cast

  • Liu Yi Jun as Jiang Yu Wen
  • Ricky Chan as Duan Zheng
  • Baby Zhang as Yu Shi Ya
  • Gladys Li as Fang Lu
  • Han Li as Ye Kun
  • Aokbab Chutimon Chuengcharoensukying as Maggie
  • Song Jia Teng as Han Yu Fei
  • Luo Yan as Yu Pei Shan
  • Xia Ming Hao as Geng Ze Kai

Production Details

Original Work: Adapted from the novel “Ni Shi Zhen Cha Zu” (逆时侦查组) by Zhang Xiao Mao.
Production Company: iQIYI,  Shanghai Yaoke Culture, and Beijing Leben Film and Television Culture Media
Filming: Filmed in Zhuhai, Zhongshan, Macau

Episodes & Airing

  • Total Episodes: 16
  • Episode Length: 45 minutes
  • First Aired: September 17th, 2025
  • Final Episode: September 21st, 2025
  • Original Network / Platform: iQIYI, and Dragon TV

Where to Watch

China:

  • iQIYI and Dragon TV

International Platforms:

  • iQIYI and Netflix International.

Why It’s Worth Watching

  • Mobius features a superb execution of an oft-previously covered story idea. The ‘time loop’ idea does not become annoying as it’s carried out so well.
  • The action scenes are superbly choreographed, directed and delivered.
  • Bai Jing Ting gives a superb performance, as well as does an exceptional job during the fast-paced action scenes.

Articles About Mobius

Bai Jing Ting’s Mobius drops character visuals – premiere date coming soon?

6 Bai Jing Ting stills from sci-fi C-drama Mobius have been released

Bai Jing Ting’s Mobius gets September premiere date – ‘Time Maze’ poster drops

Mobius reservations exceed 1 million as Bai Jing Ting’s C-drama premieres next week – cool new poster released to celebrate

Stunning Mobius billboards hit 4 Chinese cities as Bai Jing Ting’s new C-drama premieres tomorrow

Mobius passes 8,500 on iQIYI’s heat index as C-drama ends its run – new visual drops

About the Author

Michelle Topham

Editor

British-American journalist obsessed with C-dramas, a subject I have been writing about for more than two decades. How many C-dramas have I watched? Many many hundreds. How many are still in my backlog? Hundreds more.

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A blog dedicated to Chinese dramas founded by Michelle Topham -- a British-American journalist who spent almost two decades living in Asia, and wrote about Chinese series for most of that time. That's me!

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