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The new Chinese sci-fi drama Mobius (不眠日), starring Bai Jingting and Janice Man, debuted on Netflix on September 17, 2025. This highly anticipated time-reversal drama is set to wrap up on September 24, 2025, airing daily.
The show is available for streaming on both iQIYI and Netflix simultaneously. Based on Zhang Xiaomao’s novel Ni Shi Zhen Cha Zu (逆时侦查组), the show combines elements of science fiction, time travel, and crime investigation.
The story centers on detective Ding Qi, who discovers he has a rare supernatural ability to reverse time. However, his life takes a darker turn when a murder notice linked to a figure known as “X” appears.
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Complete release schedule of Mobius
Mobius is a 16-episode drama, with each episode approximately 45 minutes long. It airs daily from Monday through Sunday according to a set release schedule.
The series premiered with the release of the first 5 episodes on September 17. Starting then, 2 new episodes will be released each day until the finale at 6 pm CST.
Detective Ding Qi’s time-loop pursuit unfolds in Bai Jingting’s sci-fi drama Mobius: Plot & cast
The plot of Mobius follows detective Ding Qi, who, in a peculiar moment of time and space, stumbles upon an extraordinary ability. He gains the power to reverse the day and relive it. This cycle is limited to 5 repetitions and resets at midnight. With each restart, the world forgets what has already transpired. The process leaves only Ding Qi and, on rare occasions, a select few to be able to recall faint fragments of earlier loops.
Using this gift, he spends the first four cycles gathering evidence and following leads, saving the final loop as the decisive moment to prevent crimes from unfolding. His unusual skill allows him to untangle cases that would otherwise remain unsolved. However, each of these uses leaves him grappling with the burden of memory that no one else shares.
Ding Qi’s life shifts when a chilling murder notice signed by a suspect named “X”, later revealed as “Squid,” emerges. The precision of past crimes attributed to this figure leads Ding Qi to believe that his adversary may also wield the same time-looping ability.
This creates a dangerous symmetry between pursuer and pursued. What begins as a straightforward investigation transforms into a high-stakes battle across shifting timelines. Every clue gathered risks being rewritten by the next cycle.
As Ding Qi and his investigation team dig deeper, their path narrows toward a powerful genetic research and biotechnology organisation. The case grows more unsettling when key executives within the group start dying one after another.
It suggests that the murders are tied to a larger conspiracy hidden within the cracks of time itself. In this labyrinth, Ding Qi learns that not all allies can be trusted with betrayal and deception shadowing every step. The deeper he ventures, the closer the danger creeps into his personal life, drawing those around him into the spiral of uncertainty.
Within this framework lies the concept of the “Time Cycle Perceiver,” individuals who manage to retain fragments of their memories from earlier iterations. Their presence complicates the fragile balance of each cycle.
It makes the fifth and final repetition, which is the "Ultimate Cycle Day", the most perilous of all. Unlike the earlier loops, this final one involves other perceivers who actively alter the course of events, turning Ding Qi’s careful strategies into volatile gambles.
At the heart of the series is the notion of the “Mobius Strip,” where Ding Qi’s relentless pursuit and Squid’s evasions twist endlessly through folds in time and space. Here, truth and falsehood blur into one.
This creates a cyclical struggle where victory and defeat become indistinguishable. The detective’s power renders him both formidable and vulnerable. It forces him to confront not only the crimes he seeks to solve but also the fragile line separating fate from choice.
The First Frost fame Bai Jingting plays the role of Ding Qi. Alongside him in the lead role is Operation Moscow actress Janice Man, who plays biologist and researcher An Lan. Actor Song Yang also joins the cast in a significant role.
Episodes 6 and 7 of Mobius are scheduled to premiere on September 18, 2025, at 6 pm CST.
