When an unknown toxic gas strikes Seoul in an unprecedented act of terror, Yong-nam has just met Eui-ju from college by chance at his mother’s birthday banquet. The city falls under sudden noxious gas attack and together, they must escape the panic-stricken city.

Sang-hyun (Song Kang-ho), a respected priest, volunteers for an experimental procedure that may lead to a cure for a deadly virus. He gets infected and dies, but a blood transfusion of unknown origin brings him back to life as a vampire. Now, Sang-hyun is torn between faith and bloodlust, and has a newfound desire for Tae-ju (Kim Ok-vin), the wife of his childhood friend.

Oh Mal-Soon (Nah Moon-hee) is a 74-year-old widow that realizes she is becoming a burden on her family. As she is roaming the streets, she comes across a photo studio and decides to dress up for a self- portrait. When she walks out of the photo studio, she mysteriously turns back into her twenty year old self. Making the most out of this one in a lifetime opportunity, she changes her name to Oh Doo-Ri (Sim Eun-kyeong) and decides to make the most out of her youth.

When stricken with a terminal disease, Young-su leaves his careless high life in the city, live-in girlfriend and dwindling business. He retreats to a sanatorium in the countryside in order to treat his illness, where he meets a young woman who is a resident patient there. Soon they develop feelings for each other and leave the sanatorium together to live in a small but cozy farm house. Their health improves dramatically but when Young-su’s friends from the city come for a visit, he starts to wonder if he should abandon mundane rural village and return to his former lifestyle.

Dae-ho, an investigative journalist, seeks to track down the whereabouts of his son who was abducted three years ago. With the help of a detective and a psychiatrist friend, he will retrace his memory of the incident through the use of lucid dreaming techniques.