A contract killer gets entangled with a murder case and three terminally ill women who have each decided to end the life of one person before they die.

A former special forces soldier delivers revenge for victims of injustice while working for a secret organization that fronts as a taxi company.

Gye Sook Ja, a recruiting team leader of an enormous game company. She is gifted with extraordinary memories and computation abilities, but she tries to quantify everything in the world and is regarded as “cold-blooded” among the people around her. Lee Hae Joon, a successful lawyer working with international children’s rights. He tries to help Gye Sook Ja overcome the pain and trauma of her past.

Park Jung-Woo is a prosecutor at Seoul Central District Prosecutors' Office. One day, he wakes up and finds himself in locked up at the police station. He has temporary amnesia. Park Jung-Woo is falsely accused and is sentenced to death. He must struggle to prove his innocence.

A K-fantasy action unfolds as the Nine-tailed fox makes a crash landing in the year 1938, an era of chaos, and he struggles to return to the present.