Colony movie review
Cast: Jun Ji Hyun, Koo Kyo Hwan, Ji Chang Wook, Kim Shin Rok, Shin Hyun Been, and Go Soo.
Director: Yeon Sang Ho
Rating: ★★★.5
Let’s be real; nothing will ever hit like that first Train to Busan watch. But filmmaker Yeon Sang Ho clearly isn’t trying to copy himself. With the new Korean movie Colony, released in theatres this week, the director returns to the outbreak thriller with an entirely new set of rules. This time, he traps everyone inside a Seoul skyscraper rather than on a train. And his zombies are not mindless. They actually think. Together. Like a hive. These aren’t stumbling, isolated predators; they coordinate, adapt, and swarm like a hyper-efficient insect colony.

Plot of Colony
The film wastes zero time setting up its nightmare. It begins at a Seoul corporate showcase where Seo Young Cheol (Koo Kyo Hwan), a vengeful biologist who was just fired, injects the CEO with a fast-acting, weaponised bacteria. Before the crowd can even process what is happening, the luxury biotech high-rise is overrun by aggressive, mutating infected. The virus spreads through bites, and, in a sick twist, Young Cheol casually drops the bombshell that his blood is the only cure. Yeah, this guy’s a piece of work.
The survival effort falls on Professor Kwon Se Jeong (Jun Ji Hyun), who is stuck leading a ragtag group of survivors. And her ex-husband Han Gyu Seong (Go Soo) is in the mix too. Awkward doesn’t even begin to cover it. With IT worker Choi Hyun Hee (Kim Shin Rok) guiding them through security cameras, her brother, Choi Hyun Seok (Ji Chang Wook), clearing paths as the building’s security guard, and researcher Gong Seol Hee (Shin Hyun Been) trying to help from the outside, the movie unfolds as a tense, floor-by-floor scramble to the top.
Performances
Let’s talk about the cast who keep the film grounded as it has all the top league stars of South Korea. Jun Ji Hyun is the anchor here. She’s fierce, smart, and completely believable as someone who’d actually survive this nightmare. Go Soo plays the ex-husband who’s clearly going to do something heroic and honestly, he sells it. Koo Kyo Hwan is terrifying as the mad scientist. He’s got this cold, smug energy that makes you want to strangle him but you can’t look away either.
Ji Chang Wook absolutely shines in selling the anxious person who will fight everything in order to save everyone and his sister. His fight scenes are brutal, fast, and easily some of the best in the film. Kim Shin Rok’s performance is amazing. She sells the fear so well, and her connection with Ji Chang Wook’s character feels real. Finally, Shin Hyun Been does a great job as the nervous researcher on the outside. She basically becomes our stand-in, panicking so we don’t have to. Kim Jong Tae makes a definitive mark with his limited but crucial screen time.
What works and what does not
Look, we’re all going to compare this to Train to Busan. Yeon made that masterpiece, so it’s fair game. But, Train to Busan made you feel things. You cried on that train. Colony? It’s smarter, sure, but it’s also colder. You’ll be impressed more than moved.
The hive-mind zombie concept is intriguing. Watching these things coordinate, set traps, and learn from their mistakes is genuinely unsettling. Every floor is a new nightmare, and some of these action sequences had everyone gripping for their armrest.
Where the movie falters is in its crowded script. The first act throws a dizzying number of characters at you, making it hard to form any real emotional attachments before the body count rises. It’s a lot for two hours, and the emotional stuff gets squeezed out. It might lack the emotional gut-punch of his earlier work, but Yeon Sang Ho deserves serious respect for delivering a calculated, clever twist on the undead.
Verdict
Colony is an entertaining, conceptually clever, high-concept thriller that gets slightly bogged down by its own big ideas. It may lack the devastating emotional wallop of Yeon Sang Ho’s previous works, but its stellar action, brilliant creature mechanics, and strong lead performances make it a worthy weekend watch for any zombie thriller fan.