Sang-min comes to Finland to send her autistic son to a special camp. She feels so alienated in snow covered-white Helsinki. Ki-hong is an architect working in Finland on dispatched duty. His family is not so perfect either with a daughter having child depression and mentally unease wife. The two meet for the first time at the gathering point of this special camp. They get to have a short trip to the camp together in silence but start to feel comfortable and connected to each other. On their way back to Helsinki, with the road blocked from heavy snow, Sang-min and Ki-hong are isolated in a cabin by the forest and lake. Carried away by irresistible passion, they spend a night together. But the next day, they go separate ways without asking each other’s name…

Dr. Seung-hoon sedates his landlord before medical check-up, when the old man begins telling him a convincing murder confession. Sometime later, a young woman’s severed head is discovered at a butcher shop run by his landlord’s son, and Seung-hoon begins to suspect that the landlord and his son are the serial killers.