If you’ve ever wondered what would happen if Mean Girls joined a Japanese horror club and then tried to out-brood The Ring after three Red Bulls, allow me to introduce you to Black Rat (2010). Directed by Kenta Fukasaku — yes, the son of Battle Royale’s director, which makes this movie’s mediocrity even more tragic — Black Rat is a slasher film that thinks it’s edgy because it has text messages, karaoke, and a rat mask that looks like it came free with a Halloween bento box.
This movie isn’t scary. It’s not even cheesy in a fun way. It’s like someone tried to film guilt itself — that vague, awkward, half-digested teenage regret — and forgot to include the part where the audience should care.
🐀 The Rat Trap
We begin, as all great horror films do, with a student suicide that is somehow less emotionally resonant than a broken vending machine. Asuka, our resident victim-turned-plot-device, leaps off the school roof wearing a rat mask — because symbolism, I guess. Forty-nine days later (because Japan loves numerology and ghosts with a strong sense of scheduling), her classmates get cryptic text messages:
“Please come to classroom 3B at midnight tonight. I’ll be waiting. — Asuka.”
If that doesn’t scream definitely not a trap, I don’t know what does. Naturally, the six students show up, because horror movie logic dictates that teenagers will follow any creepy summons as long as it arrives via SMS.
Then enters the killer: a figure in a schoolgirl uniform and rat mask who communicates by writing notes instead of speaking. At this point, I assumed the killer was either mute, dramatic, or just deeply committed to the world’s most elaborate game of silent charades.
🎭 Flashbacks of Mediocrity
Through the magic of flashbacks, we learn Asuka wasn’t killed by ghosts, demons, or even an evil science experiment. No, she died because her classmates were jerks who didn’t want to wear rat masks for a school dance. That’s it. That’s the trauma. Imagine dying because your art project didn’t get enough participation points.
Asuka’s dream was to modernize a traditional rat-themed dance — a concept so aggressively unappealing that I started rooting for gravity. Her friends skip practice to sing karaoke, which is apparently the greatest betrayal since Judas. Asuka kills herself, and her sister Akane decides to avenge her by donning the rat mask and going full Saw: The After-School Special.
⚡ The Killing Spree (Sponsored by Confusion)
The murders start off promising — if by “promising” you mean “competently framed and probably filmed in one night.” Takashi, the first victim, gets beaten to death with a metal bat. Not exactly innovative, but at least it’s clear.
Then comes Kanako, who’s tied to a chair and forced to score 100 points in karaoke or die. Because nothing says psychological torment like bad singing. She gets 52 points and is electrocuted to death, which might be the first time a slasher film has successfully weaponized bad pitch.
From there, the film descends into chaotic flashbacks and flashlight chases, the kind where everyone is crying, running, and confessing, but you’re too bored to follow who’s who. It’s like watching a Scooby-Doo episode directed by a sleep-deprived philosophy major.
Eventually, we discover there are two killers — Asuka’s sister Akane and her accomplice Kengo, who might be the world’s most reluctant villain. He helps her kill people, then gets killed himself because even the movie gets tired of him.
🧠 The Plot Twist That Forgot to Twist
Just when you think it’s over, the movie tosses in one last rat from the nest: Misato, Asuka’s only real friend, puts on the mask herself and finishes the killing spree. She kills Saki (who stole Asuka’s boyfriend) with an axe, and then Ryota, said boyfriend, explodes while trying to escape on his scooter. Because yes, this movie ends with a man spontaneously combusting on a moped.
And then… it’s over. Misato sits on the stairs as emergency lights flash, probably thinking, “Did I just kill everyone for a dance routine?”
🧀 The Cheese Factor
Let’s be honest: Black Rat takes itself way too seriously. It’s shot with the dim lighting and somber tone of a prestige drama, but the story has all the gravitas of a haunted TikTok.
Every time the killer appears, it’s treated like a revelation — but when your villain wears a rubber rat mask that looks like it came from a dollar store, it’s hard to stay afraid. I half-expected her to stop mid-kill and offer someone cheese.
The dialogue doesn’t help. Characters talk in vague, melodramatic fragments like they’re auditioning for a soap opera titled The Days of Our Rodents. Lines like “Asuka was always smiling” are repeated so often that by the end, you wish someone would just stab you to make it stop.
Even the kills, which could’ve been inventive, feel lazy. There’s no rhythm, no suspense — just a series of loosely connected “gotcha” moments strung together with flashbacks and jump cuts. The editing is so choppy it feels like the film itself is suffering from a seizure.
🎬 The Acting (or Lack Thereof)
Misaki Yonemura as Misato spends most of the film looking confused, like she just realized she’s in a direct-to-DVD horror. Hiroya Matsumoto as Ryota alternates between shouting and looking slightly constipated, which, to be fair, is more range than most slasher boyfriends get.
Rina Saito’s Asuka has about three minutes of screen time, most of which involves staring blankly into the camera before swan-diving off a building. It’s like The Grudge, if the grudge was just “no one liked my interpretive dance idea.”
And then there’s Akane, the avenging sister, played with the intensity of someone who just found out she’s been double-booked for a karaoke competition and a homicide. Her performance is equal parts rage, eyeliner, and cardio.
🐭 A Rat’s Nest of Missed Opportunities
To its credit, the concept could have worked. Revenge slashers about bullying can be cathartic — see Carrie, Heathers, or Promising Young Woman. But Black Rat never picks a tone. It’s too grim to be campy, too absurd to be serious, and too dull to be scary.
It’s as if the filmmakers couldn’t decide whether they were making a ghost story, a slasher, or a PSA about the dangers of karaoke peer pressure. So they mashed them all together and hoped no one would notice. Spoiler: we noticed.
The biggest tragedy isn’t the body count — it’s that the film wastes every opportunity for tension. Instead of building dread, it keeps resetting itself with flashbacks, like a video game stuck in tutorial mode. The result? Ninety minutes that feel like an eternal detention.
💀 Final Thoughts: Cheese and Despair
By the time the credits rolled, I realized Black Rat wasn’t a horror movie — it was a test of endurance. It dares you to stay awake, to find meaning, to care. And like the characters, you’ll fail.
If Battle Royale is a feast of violence and satire, Black Rat is the stale crust someone left on the floor. It’s derivative, undercooked, and deeply in love with its own shadow. The movie tries to squeak out a message about guilt, bullying, and friendship, but it lands somewhere between melodrama and accidental comedy.
Still, it’s not completely without charm. There’s something morbidly amusing about how committed it is to its nonsense — as if Kenta Fukasaku really thought he was making Donnie Darko meets Hello Kitty. And hey, any film that manages to make karaoke lethal deserves some kind of recognition.
🧀 Final Rating:
1.5 out of 5 Rat Masks.
Half a point for effort, half a point for the scooter explosion, and half a point because the phrase “vengeful rodent spirit” still makes me giggle.
If you love Japanese horror and have a high tolerance for incoherent revenge plots, Black Rat might be your jam. But for everyone else, it’s less squeakquel and more squeak-tastrophe.
