This drama tells the story of a boy who becomes critically injured due to an incident of school violence and his family who seeks the truth and fights for justice in his name. Park Moo Jin (Park Hee Soon) and Kang In Ha (Choo Ja Hyun) are a married couple. Park Moo Jin works as a high school teacher and Kang In Ha runs a bakery. They enjoy their lives with their children. Their peaceful days soon turn into a hellish experience. Their son, who is in the 3rd grade of middle school, is seriously injured due to school violence. Park Moo Jin and Kang In Ha try to reveal the truth. Meanwhile, Oh Jin Pyo (Oh Man Suk) and Seo Eun Joo (Jo Yeo Jung) are a married couple. They are both from wealthy families. Oh Jin-Pyo is the chairman of a private school foundation inherited from his family. They have never experienced failure or lacked anything. They have a son who makes trouble. The parents coverup for their son’s misbehavior.

Song Yeo-wool, a widow who has been falsely accused of her husband’s murder, goes on a dangerous path to discover the truth about her husband’s death, while facing great judgement from the society. With this charge and allegation on her, she gets near about losing everything and becomes devastated. Meanwhile, the parents of students of international school where Yeo-wool’s son studies, starts to spread rumors about Yeo-wool.

One by one, the crafty members of a destitute family insinuate themselves into the household staff of a wealthy couple living in oblivious privilege.

After getting fired from a children's toy company, an overworked marketing executive teams up with her bohemian sex-shop-owner neighbor to create better toys of a different kind, reigniting her stilted marriage in the process.

A servant falls in love with a girl whom his master also desires. Although the girl loves the servant, she also longs to improve her station in life.