Yu Menglong Mystery Death: Chilling Allegations Of 'Biological Plastination' at Beijing Museum

Chinese actor Yu Menglong's unexplained death in Beijing on Sept. 11, 2025, aged 37, has spiralled into an online storm of allegations, with some social media users now claiming his body was secretly preserved for 'biological plastination' at a Beijing art museum rather than cremated, according to reports cited by overseas Chinese outlets.

Yu Menglong was initially reported by Chinese authorities and state-linked media to have died by suicide, a narrative that many of his fans rejected almost immediately. Within a day, hashtags around his name swelled with posts accusing officials of mishandling the case and covering up foul play.

Protest-style messages in Chinese and English called for an independent investigation, arguing that the official version of events did not match what they saw in purported CCTV clips circulating online. None of these claims have been confirmed by Chinese authorities, and there is no publicly released investigative report, so every allegation remains unverified and should be treated with caution.

Fans Question Official Story Around Yu Menglong

In case you missed it, the doubts over how Yu died began when users started sharing what they said were security camera videos and still images of a man they identified as the actor. In those clips, a man is seen in a car park being grabbed, hit and apparently trying to escape, before other fragments show someone being pushed from a building. Online posts assert that this sequence proves Yu was attacked and then thrown to his death. The original sources of the footage are not clear in the material cited, and no official body has authenticated that the man shown is Yu Menglong.

Despite that, the images have become the backbone of a swelling online campaign. One user wrote: '#YuMenglong... He didn't kill himself. It was a homicide! In China, the truth has been covered up! I hope international friends pay attention to it! This is a life! Whoever he is. We need the truth.' Another post claimed Yu had 'suffered illegal sexual abuse in China and tragically died,' accusing the government of 'silencing the truth' and tagging Amnesty International, Human Rights Watch and the UN's human rights office.

Those accusations have not been supported by any public court records or official investigative findings. No Chinese police statement cited in the reporting addresses claims of sexual abuse or homicide. The gap between the sparse official messaging and the volume of fan-driven material has left a large grey zone where rumour thrives.

Claims of Powerful Protection and 'Biological Plastination'

The most startling allegations now link Yu Menglong's name to a Beijing art institution and to an obscure, highly technical process more commonly associated with medical exhibitions. According to Vision Times, a self-described 'Red Descendant' who uses the online name Lin Beichuan has publicly accused a senior public security official of shielding those he believes are responsible for Yu's death. In a post cited by the outlet, Lin said: 'The person I reported is the only one who's ever been specifically and directly accused. He's the real protagonist – the artery. Anyone who mentions him will be targeted. Everyone else is just a decoy or a scapegoat.'

Lin also told his followers they should treat any sudden silence or out-of-character posts from his account as a sign he had been controlled. 'If I go silent for a long time or suddenly post something against my will, that's not me. It means I've been controlled,' he warned, adding that he would 'never compromise' or 'speak words against my conscience.' There is no independent verification of Lin's identity, his claims about the official, or any action taken against him.

Vision Times further reported that unnamed independent Chinese commentators have alleged Yu's remains were not cremated, as state-linked accounts suggested, but instead kept in a restricted cold-storage area at the Qihai Art Museum near the Bulgari Hotel Beijing.

Citing what it called a whistle-blower from inside the facility, the outlet said the body appeared to have been treated with formalin and might be undergoing biological plastination, a method of preserving human tissue used in anatomy teaching and some touring body exhibitions.

The same whistle-blower allegedly claimed that at around three in the morning, Yan Shijie, director of Beijing's Red Brick Art Museum, arrived with a team to move the body through a tunnel. Yu was said to be covered only by a black cloth, with 'purple marks on his ankles.' The account goes on to say the remains were then taken to the museum's deepest basement level, B4, and that staff were ordered to stay away from that floor on threat of 'serious consequences.'

None of these details have been corroborated by official Chinese sources or by independent investigators. The reports rely on anonymous voices and secondary outlets operating outside mainland China's media system. With no public documentation about the handling of Yu's body, the plastination theory remains firmly in the realm of allegation, not fact.

Celebrities, Censorship and a Name That Would Not Be Spoken

The swirl of claims around Yu has also drawn in Chinese entertainers who have tried, cautiously, to signal their doubts. Vision Times noted that actress Sun Lin posted an eight-character acrostic poem online, whose first characters, read vertically, spelled out the message: 'Yu Menglong has been wronged; please file a case.' The post was swiftly removed. Sun reportedly returned to social media to ask, 'What exactly are you afraid of?' and to stress, 'I am a poet; the photo isn't mine. Please don't comment.' That second message, too, did not remain visible for long.

Actor and singer Jackson Yee was reported to have mentioned Yu's case for the first time, referring to a controversial livestream that took place on September, although the content of his remarks is not detailed in the material provided.

In the latest twist described by Vision Times, independent media creator Edward Wenming says he has begun to see Yu Menglong's name appear in content from official or semi-official Chinese accounts, where previously it had seemed heavily suppressed. If accurate, that would suggest some easing in the apparent effort to keep his case out of mainstream discussion, though it does not shed light on what really happened to him.

What is beyond dispute is the scale of Yu's career and the sense of loss felt by fans. He first stepped into the public eye through the 2007 reality programme My Show, followed by Super Boy in 2010, where he later became a trainee in the group Happy Boy Group 8090. He went on to gain global recognition as the ninth prince in the period drama Go Princess Go, and built a varied résumé that included series such as The Legend of White Snake, Eternal Love, All Out of Love, The Love Lasts Two Minds, Who's Not Rebellious Youth, The Fated General and My Loving Home.

On the film side, his projects ranged from Little Prince and The Changing Times to The Rules, No Zuo No Die, Temporary Family, Young Adult, Love Studio, Love Has Been Here Before and Warrant the Reborn. That body of work is verified and concrete in a case otherwise thick with shadows, contested narratives and a family still waiting for clear, on-the-record answers.

Nothing about the precise circumstances of Yu's death, or the handling of his remains, has been officially confirmed in detail, so all of the more sensational claims in circulation should be taken with a grain of salt until hard evidence emerges.