Plot
Ha Na and Doo Na were twin sisters who were very close to each other until Doo Na died a terrible death. One day, the usually bright and energetic Ha Na finds herself changing. She has superhuman strength and can do things that nobody can. Ha Na realizes that Doo Na's spirit has inhabited her body. Shin Ryu, a criminal psychoanalyst, uses Ha Na's powers to kill people that cannot be punished by the law.
Cast
Lee Seo-jin
as Shin Ryu
Seo Jun-yeong
as young Shin Ryu
Im Joo-eun
as Yoon Ha-na
Ahn Seo-hyun
as Ha-na (young)
Park Ji-yeon
as Yoon Doo Na
Jeon Boram
as Shin So-yi
Kim Sung-ryung
as Ha-na and Doo-na's mother
Kim Kap-soo
as Baek Do-shik
Yoo Yeon-seok
as Baek Joong-chan
Lee Kyu-han
as Seo Joon-hee