Secret File 2026

Secret File (密档, also known internationally as Hideaway: The Dossiers) is already released. The Chinese historical mystery drama opened in mainland China on August 28, 2026, following its earlier premiere as the opening film of the 38th Hundred Flowers Awards events. Directed by Zheng Dasheng, the film takes a very different approach to the spy genre. There are no constant gunfights or elaborate espionage set pieces. Instead, the tension comes from people trying to look completely ordinary while hiding something that could cost them their lives.

The story is based on the real history surrounding the protection of the Central Archives, a collection of more than 20,000 important documents. The film places that history inside a Shanghai shikumen neighborhood during the Japanese occupation in 1942. Its focus is deliberately small: a married couple, their neighbors and a dangerous secret hidden inside an ordinary home.

That choice gives Secret File its identity. It is slower and quieter than the average spy thriller, but that restraint is also its biggest gamble. Viewers expecting chase sequences and frequent twists may find the pace demanding. Those willing to watch the details should find a more intimate story about fear, trust and people trying to survive without revealing who they really are.

Storyline

The film is set in 1942 Shanghai, when the city was under Japanese occupation and ordinary life existed alongside constant danger.

At the center are Xu Shuting and Shen Yulin, a husband and wife working undercover as seemingly ordinary residents of a Shanghai shikumen house. Their real responsibility is far more dangerous: they must protect a large collection of highly classified historical documents connected to the early years of the Chinese Communist Party.

The documents are concealed in No. 52 Xiaoshadu Road, turning the house itself into the film’s main pressure point. Neighbors come and go, people cook, talk and deal with everyday problems, while the couple quietly tries to make sure nobody discovers what is being kept nearby.

That is where the film’s suspense comes from. A conversation that sounds harmless can become dangerous. A search of the neighborhood can turn an ordinary room into a potential trap. The characters cannot simply fight their way out; their survival depends on maintaining the appearance of normal life.

Zheng Dasheng intentionally keeps the story close to these everyday details. The film reportedly draws on historical records and period accounts to recreate the atmosphere of occupied Shanghai rather than turning the characters into larger-than-life action heroes.

It is an unusual structure for a spy film. The danger is often felt before it is openly seen. That makes the first half relatively patient, while the later sections carry greater pressure as the search for the documents closes in.

Cast & Performances

• Yuan Hong as Xu Shuting — Yuan Hong takes a restrained approach to the character. Xu is not presented as a swaggering spy but as an ordinary-looking man who has to constantly control what he says and does. Yuan has described the role as one of the most unusual experiences of his career, particularly because the performance depended heavily on everyday behavior rather than conventional heroic gestures.
• Li Yanxi as Shen Yulin — Li plays Xu’s wife and fellow underground worker. Her performance is built around keeping emotion under control, particularly as the couple balances their mission with ordinary family concerns.
• Shao Feng — Shao Feng is part of the supporting ensemble and plays Gu Shaotang, the landlord of the residence. His character adds another layer to the neighborhood’s complicated social dynamics.
• Xie Chengying — She plays A Chun, the housekeeper, and forms part of the wider group of residents whose everyday lives become intertwined with the hidden operation.
• Li Xiaochuan, Huang Ling, Xu Xiang and Zhang Yulin — The supporting cast helps create the crowded neighborhood atmosphere that the film depends on. Rather than treating these characters as disposable extras, the production uses them to build a picture of ordinary people living through an extraordinary period.

Yuan Hong and Li Yanxi are particularly well suited to the film’s understated style. Their characters spend much of the story hiding their real feelings, so the performances depend on small reactions rather than big speeches. That makes the acting less immediately showy, but it fits the story’s central idea: when revealing too much can be fatal, even an expression can become evidence.

Release Date & Where to Watch

Secret File was released theatrically in mainland China on August 28, 2026. Its Chinese title is 《密档》, with Hideaway: The Dossiers listed as an international title. The film is directed by Zheng Dasheng, produced by Shanghai Film Group, and runs for approximately 132 minutes.

The movie was first shown publicly on August 7, 2026, when it served as the opening film for the 38th Hundred Flowers Awards events, before receiving its nationwide theatrical release later that month.

Where to watch: Secret File is currently playing in Chinese cinemas. As of September 3, 2026, a confirmed international streaming release has not been announced. U.S. availability trackers likewise list no current streaming service, so viewers outside China should not rely on unofficial sites claiming to offer the movie.

Box Office / Expectations

Secret File has had a modest theatrical run so far. China’s box-office tracking data shows the film at roughly ¥5.45 million after seven days of release as of September 3, with its daily earnings already falling as its theatrical run progresses.

That is a relatively small figure compared with the major commercial titles competing in the Chinese market at the same time. The film’s limited box-office performance is not entirely surprising given its subject and style. A 132-minute historical spy drama built around quiet psychological tension has a much narrower theatrical audience than a large-scale action film or broad comedy.