An Uninvited Guest (Movie - 2010)

Previously known as "Gate-crasher" (불청객, Bool-cheong-gaek)
Synopsis
A strange man comes into a house with only the wife. He says he'll leave after a shower and a meal, but his actions are exactly like the husband's. What has happened? He says that he learned everything from a friend he knows...

A woman who is taking rice cakes around is held hostage with the wife. The man gets drunk and reveals the truth about her husband. The wife feels more scared about her husband now... Ji-min returns home and is angry and appeals that he is not a friend that he knows. He wants to kill the strange man...