A small van-load of city people heads into the hills. There are two thirty-something couples plus one younger sister, Se-hwa, off to visit old school friend Chang-hyeon. He has turned his back on his career and middle-class comforts and operates a trout farm. His only company is Tae-ju, a strange boy who runs a kennel. When Tae-ju becomes fixated on the young Se-hwa, the urban sophisticates see their outing turn more than challenging.