A maid who works for a wealthy family becomes obsessed with her employer’s life. She begins doing something secretly when she is alone in the house.

A girl wakes up in a huge secret laboratory, then accidentally meets another girl who is trying to protect her house from a gang. The mystery girl overthrows the gang with her unexpected powers, and laboratory staff set out to find her.

The awkward, distant, and wounded three sisters gather at their hometown for their father's birthday. However, on the day of the party, there is a big mess because of their little brother Jin-seob's abnormal behavior, and the past of the three sisters slowly reveals.

Jae-wan, a successful lawyer, takes on the case of a rich executive's son, who has purposely run over and killed a man and left his daughter seriously injured. It's Jae-wan's job to defend a murderer, just another rung on his career's golden-stepped ladder. His younger brother, on the contrary, is a scrupulous and upstanding paediatrician, who always puts the health of his patients over profit and money, often contravening the rules of the private clinic where he works. The brothers meet once a month with their wives for fine dining in expensive restaurants, but when an unexpected situation involving their teenage kids arises, their consciences are questioned and their usual dinner conversation takes an unexpected turn.

Jang Se-chool is the boss of a gang. He has been in love with Kang So-hyun for the past 3 years, even though she constantly rejects him and tries to push him away. Having had enough, she tells him that she can't be with him because she wants to be the first lady of Korea.

A man is on his way home when the poorly constructed tunnel he is driving through collapses, leaving him trapped leaving himself for the unexpected whilst emergency services struggle to help.

A homicide detective tries to flush out a mob enforcer by befriending the suspect's beautiful girlfriend, but soon develops romantic feelings for her.