The Park family seem to lead a quite ordinary and peaceful life; well, maybe a little poorer than the average Seoul citizens. Park Hee-bong (played by Byun Hee-bong) is a man in his late 60s running a small snack bar on the banks of the Seoul's Han River and, living with his two sons, daughter and granddaughter. Hee-bong's elder son Gang-du ( Song Gang-ho) is an immature and incompetent man in his 40s, whose wife left home long ago. Nam-il (by Park Hae-il) is the youngest son, an unemployed grumbler, and daughter Nam-joo (by Bae Du-na) is an archery medallist and member of the national team. What the three generations of the Park clan doesn't know, is that a bloodthirsty mutant of indeterminate origin is about to rise up unannounced from the Han River. When the creature abducts the granddaughter and the dysfunctional remnants of the group decide to come together to save her, so begins a terrifying lesson of a new concept of family... Echoing the jet-black B-movie horror comedy of Tremors, Bong Joon-ho (best known in Europe for his excellent serial killer thriller Memories Of Murder) gives the time-honoured creature feature an intoxicating spin with buckets of blood, brilliant comedic touches and a healthy slice of biting social satire!