After ten years, a loyal employee is framed for embezzlement, then murdered by his employers, only to be reborn as their youngest son, with a yearn for revenge guiding his hostile takeover.

Cha Woo Kyung is a child counselor who works at a children’s center. Her life seems perfect since he is married to a great husband and is pregnant. However, her perfect life doesn't last long, when an accident changes her life. She then meets Kang Ji Hun, a detective who is hurt for hiding his troubling past but is strict toward criminals and believes they should be punished to the full extent.

A psychopath's ruthless serial murders have left the entire nation gripped with fear and chaos. A honest and justice-seeking rookie police officer and a veteran detective with tragic past, face against the killer. After the encounter with the psychopath, their lives totally change.

Bok-ja is granted a special vacation after her death, which allows her to go see her daughter, Jin-joo, a university professor living abroad. Unlike her expectation, Bok-ja finds Jin-joo living in her old house running a local diner and becomes frustrated with questions that she is unable to ask. After spending time alongside Jin-joo, Bok-ja realizes that her daughter is struggling with the unresolved feelings about her, and tries to find a way to show her sincere feelings that she had never shared before.

Hwang Shi Mok underwent brain surgery as a child to curb his violent temper, which left him devoid of emotions. Hwang becomes a prosecutor known for his piercing intelligence and logic, but he is ostracized because he lacks empathy and social skills. He is also one of only a handful of upright prosecutors who have refused to take bribes. One day, he encounters a stabbing victim while investigating corruption. He meets Lieutenant Han Yeo Jin at the crime scene. They join forces to root out corruption at the prosecutors’ office and solve a serial murder case.

Shin-ae moves to her recently late husband’s hometown. Despite her efforts to settle in this unfamiliar and too-normal place, she finds that she can’t fit in. After a sudden tragedy, Shin-ae turns to Christianity to relieve her pain, but when even this is not permitted, she wages a war against God.