Sung geun, a physical education teacher, is at risk of losing his job when the school decides it needs an English teacher instead of a PE teacher. Therefore, he starts to devise a plan to change his job as an English teacher.

A detective and a gang of thieves trail three high-school students who found a bloody corpse and a bag of cash on top of their car.

Ko-bong has a huge crush on Gye-soon who works at a fast food restaurant without knowing that the girl he love is a spy from North Korea.

A financially desperate salaryman teams up with his friend to kidnap a rich girl to make a quick buck. But then he gets a call and learns that his own daughter has been kidnapped as well.

An attractive single mother rents a room in her house to a mysterious drifter who has nefarious plans to swindle her.

An old bachelor Seok-joong, who has no experience in dating, falls in love at first sight with a prostitute named Eun-ha. At first Eun-ha shows no interest in Seok-joong, but gradually she begins to be flattered by his devotion and eventually falls in love with him. They marry. However, one day, Eun-ha finds out that she is infected with HIV and decides to leave Seok-joong.