Man Soo (Kang-woo Kim) is a train conductor. Everyday he performs the same old routines, and gradually his days begin to feel as uneventful and predictable as the ongoing rotation of the wheels on his train. One day, his train gets caught in a messy accident involving a passenger's suicide, and he is forced to take leave from work. He gets on the last train. Hanna (Tae-yeong Son) is an attractive college instructor who is having an affair with a married professor. Her world is turned upside down when his wife confronts her. Abandoned and betrayed by her lover, Hanna is forced to face her own demons. She quits her job, and hops onto the last train. A train conductor and a college instructor seem to share nothing in common. But for Man Soo and Hanna, brought together by fate, finding solace in the companion of a stranger has never been better.
An old widower Mr. LEE plans a family reunion on the three-year anniversary of his wife’s death, but faces a series of adversities in the way. His eldest son goes through a scandalous divorce, his daughter is tied up in a car accident, and the youngest son has been missing for years after declaring bankruptcy. Finally the big day arrives and as the clock strikes midnight, the secrets of the troubled Lees begin to unfold.
Min-Jun and Ji-Won are first-rate "players" who are dating gurus with 100% success rates in any dating pursuits. Following her usual systematic dating rules, Ji-Won fakes a car accident to capture Min-Jun's attention and successfully approaches him. However, her smooth-sailing dating life finally encounters turbulence. Min-Jun is also overwhelmed by the understanding that he has met his match.
Boeun is an ordinary high school girl who worries about grades and has a crush on her school's baseball team ace, Jungwoo. One day, Boeun's grandfather orders her to marry Sangmin because of a pact he made with Sangmin's grandfather during the Korean War. Despite the grandchildren's opposition, they are forced to marry because of Boeun's grandfather's strong influence. She pretends that she doesn't have a husband and starts dating Jungwoo. Everything goes smoothly until Sangmin visits Boeun's school as a student teacher. There a teacher called Miss.Kim flirts with Sangmin and she later finds out that Sangmin and Boeun are married.