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This year’s Big Bad Film Fest came out swinging, and I’m closing out coverage of its third annual run on a serious high note. The lineup was wall-to-wall action, but the new Japanese crime thriller Isolated from director Hiroyuki Tsuj and legendary action maestro Koichi Sakamoto was the real shock to the system. I went in completely blind, and that made it even more electrifying. We’ve seen the Yakuza on screen a thousand times, but here we actually get to cheer for the bad guys in a hard-boiled, neo-noir assault on the senses packed with ruthless, bloody action design and a cold, respectable body count courtesy of Sakamoto. Front and center is a no-holds-barred anti-hero turn from star Yoshiki Yamaguchi that anchors the carnage with real presence.
Can he come through in the clutch? And who was behind the set up?
The narrative starts off a little abstract, and the way Tsuj shapes the story from Keiichiro Murata’s script has a distinct Guy Ritchie vibe—nothing is straightforward, nobody is quite what they seem, and the flow is anything but ordinary as the film jumps between present and past. It never kills the momentum, but you do have to lock in and actually engage instead of coasting like you might with more disposable action fare. If you stick with it from opening frame to final beat, you’re rewarded with some of the most blistering, hyper-kinetic martial arts choreography to hit the screen in years. From the research I’ve done, this entry is just one chapter in a long-running series of Yakuza crime thrillers, yet it still plays as a fully satisfying standalone bruiser.
The core setup is lean and lethal: Yuto Tamura (Yamaguchi), a lieutenant in the notorious Kyowa group—one of the biggest Yakuza families in the game—gets thrown into a nightmare when his right-hand man and captain, Renji Himuro, is snatched without a trace. With no time to waste, Tamura launches a desperate search-and-rescue operation that morphs into a Die Hard-style battle royale. He’s forced to storm an abandoned warehouse crawling with nameless, remorseless killers who want this Yakuza soldier erased with extreme prejudice. The pacing is pure adrenaline—relentless, breathless, never giving you a chance to exhale—as our battered anti-hero slices and blasts his way through a meat grinder of enemies. Sakamoto unleashes razor-sharp Gun Fu, vicious swordplay, and bone-crunching beatdowns that feel both meticulously orchestrated and dangerously out of control.
As mentioned, the storytelling is deliberately off-kilter, and the film literally hits the ground running and refuses to touch the brakes until the final credits roll. At first, the fractured structure keeps you off balance, but the puzzle pieces slowly lock into place, crashing together in a brutal, satisfying finale. Without spoiling specifics, expect layers of deception, betrayal, and backroom dealings that keep your head spinning as you scramble to catch up with the players. Exposition is kept to a bare minimum up front, and you can feel that this movie is just one vicious gear in a larger Yakuza saga that’s still grinding forward beyond the edges of the frame.
Tsuj weaponizes the visuals to pull the viewer deeper into this underworld, constantly shifting from color to stark black and white. One killer touch: when the film goes full B&W, every arterial spray of blood still explodes across the frame in vivid red, turning each impact into an eye-searing burst. It’s a bold, graphic flourish that makes every slash and gunshot hit harder. This signature look helps Isolated slice away from the pack of standard Japanese crime thrillers and stake its claim as something visually ferocious and instantly memorable.
As Tamura, Yoshiki Yamaguchi commands the screen with a slick, finely tuned performance. He’s the quintessential anti-hero: a bad man who’s done worse things, yet we can’t help but rally behind him as he storms the warehouse and methodically flips the kill-switch. Tamura is pure, weaponized cool—dripping with gravitas, charisma, and that dangerous energy you can’t look away from. He’s like an Energizer assassin, just keeping on through wave after wave of punishment, trading shots and blows with guns, knives, swords, fists, and feet. Yamaguchi moves like a savage ballerina, lacing every encounter with a heavy dose of bone-breaking, blade-swinging, full-contact mayhem. As his body breaks down and fatigue sets in, the tension spikes, and every new fight feels more desperate than the last.
When action junkies see Koichi Sakamoto attached to the carnage, they know they’re in for the real thing: bloody, limb-snapping action design that doesn’t blink. Best known for Drive with Mark Dacascos and the underground brawler Broken Path, Sakamoto remains one of the sharpest action minds in the business, and he doesn’t miss a beat here. After decades of crafting carnage, he’s refined his style into something brutal yet beautiful—a series of balletic death dances where every punch, slash, and bullet has weight. Each showdown escalates, topping the last with bigger risks and nastier payoffs, until you’re as breathless and drained as the lead, in the best possible way. The choreography is sleek, stylish, and explosively over-the-top; despite the sheer number of fights, you’re always hungry for one more clash, one more stunt, one more insane beat. This is unapologetically action for the sake of action, but executed at such a high level it feels like a live-action video game boss rush slamming into a catastrophic finish line. The film becomes a blood-soaked playground for Sakamoto and his elite stunt team to unleash everything in their arsenal.
Overall, Isolated is a rare gem that absolutely demands the attention of the most hardcore action fan. We’re cheering for the bad guys while getting bombarded by a non-stop torrent of blood-soaked fight choreography that refuses to pull its punches. The movie barrels forward at a rapid-fire pace and never eases off the throttle. Yoshiki Yamaguchi is a full-blown bad ass who owns every frame he’s in—physically, emotionally, and iconically. Koichi Sakamoto’s action design is a feverish, eclectic cocktail of empty-hand combat, bladed warfare, and every other weapon in the drawer thrown in for maximum impact. Strap in and hold tight—this is one fast-moving bogey that never, ever lets up.
This is stripped-down, lean-and-mean martial arts carnage at its finest, punching way above its weight class. The film unapologetically channels the golden age of Asian action cinema and never once looks back or asks for forgiveness.
VERDICT: 4 Out of 5 Stars
Get ready to root hard for the bad guy, because Isolated is a bombastic, dizzying crime thriller packed with feverish, non-stop action design from martial arts action master Koichi Sakamoto!
Be on the lookout for Isolated and add it to your action film arsenal the moment you get the chance!
