3/5 stars

Korean superstar Jun Ji-hyun makes her long-awaited return to the big screen in Colony, an action-packed zombie thriller that sees director Yeon Sang-ho revisit the undead mayhem that made his name.

The film just had its world premiere in the Midnight Screenings section of the Cannes Film Festival – a prestigious bow that neatly mirrors the debut of Yeon’s genre-defining blockbuster Train to Busan exactly 10 years prior.

Set apart from the wider Train to Busan franchise, which also includes Seoul Station (2016) and Peninsula (2020), Colony unfolds over a single day and almost entirely within the confines of central Seoul’s Doongwoori Building.

Jun plays Kwon Se-jeong, a biotechnology professor battling a hive mind of rampaging monsters infected by a vengeful scientist, Seo Young-cheol (Koo Kyo-hwan, currently also starring in the hit K-drama We Are All Trying Here).