People binge eat and suffer from extreme thirst, which leads them to go crazy for water. They cannot control themselves because they are brainwashed by a parasite.

A corrupt customs official joins forces with a vicious gangster to form the most powerful crime partnership in Busan.

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. Now, he’s torn between faith and bloodlust, and has a newfound desire for the wife of a childhood friend.

A timid and extravagant bank clerk, Dae-ho is considered inefficient at his workplace. As he tries to be recognized by his superior, his efforts only cause more bad situations. But he has an explosive energy that nobody knows about. One day, after yet another day of suffering at work, he goes to a wrestling gym to persuade its owner to become his bank’s client. And, by accident, he starts to learn how to wrestle. From then, he starts to live a new life. And his personality starts to change…

The story of three Korean outlaws in 1930s Manchuria and their dealings with the Japanese army and Chinese and Russian bandits. The Good (a bounty hunter), the Bad (a hitman), and the Weird (a thief) battle the army and the bandits in a race to use a treasure map to uncover the riches of legend.