Theatrical trailer

Newly-weds, Jun-ho and Eun-jin are leaving for Cheju Island where they
plan to spend a romantic honeymoon. At Kimpo Airport, they are joined by
six other couples, a variety of characters who seem to have nothing in
common, including the suspicious Gi-jung and his lusty wife, Go-eun, and
detective Pyun-shik and his wife, Hyun-hee. Once the group arrives in
Cheju, they seem to be affected by some libidinal drive as they can't seem
to take their hands off each other. The trip takes a tragic turn as Jun-ho's
eyeless corpse is discovered the next morning. Pyun-shik inadvertently
takes the case, but with only a Zippo lighter found at the crime scene as the
sole lead, the case goes nowhere and is closed as an unsolved mystery. A
few days later, a crucial discovery that he makes while watching TV
convinces Pyun-shik to raid the culprit's house. This reveals the bizarre and
shocking course of events that lead to the murder of Jun-ho.