atau dikenal sebagai
Soo-Hyun buys a washing machine on a website for used merchandise. When she receives the washing machine, she realizes that the machine is broken. She becomes angry and leaves comments on the website warning other users about the seller. She receives a threatening message from the seller. Soon, Soo-Hyun experiences creepy things happening to her.
While investigating a terroristic threat that goes viral online, Korean authorities discover that a suspect has recently boarded an international flight bound for the United States. When a healthy passenger on the same flight suddenly dies a gruesome death of unknown cause, panic erupts both in-flight and on the ground. With steadily decreasing fuel and international refusals to offer aid, the captain and crew will be forced to take unprecedented emergency measures in an attempt to save the lives of their passengers.
A corrupt customs official joins forces with a vicious gangster to form the most powerful crime partnership in Busan.