TV Review: Human Vapor (Japanese title “Gasu Ningen”)
When Professor Sano is killed by a mysterious mist on live television, it’s a big case. So much so that police detective Kenji Okamoto (Shun Oguri) is pulled off suspension to lead the investigation. He has mixed feelings about running into Kyoko Kano (Yu Aoi), a television reporter who witnessed the death. They had previously been lovers, but Kenji had foolishly shared confidential case information with her in an emotional outburst, and Kyoko had promptly betrayed his trust by using that information to get a scoop, which may have been responsible for a death. He got suspended, and their relationship soured.
But she is a material witness, so Kenji can’t avoid dealing with her. Plus, she’s conducting her own investigation into the Human Vapor. Very soon, it becomes known that the Vapor is targeting people involved with something called “White Center”, a conspiracy that may go all the way to the top of the government.
This 2026 Toho/Netflix production was inspired by the 1960 film The Human Vapor, reusing some of the same concepts in a modernized form. Much like the original, while there’s a central science fiction concept, the plotline and most of the action is in the crime thriller wheelhouse.
It’s an eight-episode series. The first three have Kenji and Kyoko as the protagonists, investigating the Human Vapor and the White Center while dodging attacks by the Yakuza. Then episode four switches to following sibling streamers Fujita and Kaho Fujikawa (Kento Hayashi and Suzu Hirose), who’ve discovered a clue that might lead to the secret hideout of the Human Vapor. What they learn may turn the case on its head, and then the twists start coming hard and fast.
Good: There’s plenty of thrills here, both when the Vapor is attacking people and when humans are attacking each other. Some of the twists are more obvious than others, but others are well set up so the series has some rewatch value. There are some very good shots and the special effects are excellent.
There’s a good variety of characters, and the acting is largely up to prestige television standards. The standout character is Kaho, a young woman who is painfully shy because of a dark birthmark covering much of her face, and so relies on her brother to interact with the outside world. Circumstances force her to find her courage and the ability to stand on her own feet. While, yes, there’s a conventionally attractive actress under the eye-catching makeup, the very inclusion of a person like her as a major character is sadly unusual.
Less good: The actor for the Human Vapor (Uta Uchida) is rather wooden in his acting. This actually works well for the inhuman creature he’s become, but less so during flashbacks to how he got that way. It appears this is his first major role, so he has room to grow.
Content note: Many deaths, some particularly gory or gruesome. Corpses in various stages of decomposition. Torture. Child abuse. Other gun and martial arts violence. The Human Vapor can’t turn his clothes into vapor, so is often naked. Implied extramarital sex. Older teens should be fine, but more sensitive viewers may need to skip some parts.
I am happy to report that even though the Yakuza have some turtles, they’re not particularly abusing them and the turtles survive.
Overall, this is a good thriller series with some fresh elements that also pays tribute to the science fiction films of the past. Recommended to thriller and monster movie fans.
