With the power to read people's memories, Dong Baek solves crimes as a detective in the police force. When a string of serial murders happen, Dong Baek teams up with talented criminal profiler Han Sun-mi to stop the killer and prevent further deaths. However, as they pursue the killer, the truth about their individual troubled pasts begins to unravel, and the murders quickly become far more convoluted than anything they had foreseen.[2]
A police officer and detective who is very passionate about catching criminals. He has the supernatural ability to read a person's memories by touching their skin. As a child, he was found wandering at Dongbaek Station with no memories of his past, except for a vague recollection of witnessing a woman, presumably his mother, being murdered.
The youngest Superintendent of Special Investigation Headquarters. She was a originally a lawyer but later on became a police officer to find the truth about her father's murder 20 years ago. Her father is a leader of the Labour Union but betrayed the workers whom he supposed to protect, leading to mass layoff.
Jo Sung-ha as Lee Shin-woong, head of the entire police department. He is responsible for covering up the murder and rape 20 years ago. He is arrested in the end for corruption.
Dong Baek's senior at work and also the trio's captain. He frequently complaint about Dong Baek's recklessness will cause him hair loss but continuously tries his best in helping Dong Baek while also caring about him a lot.
Dong Baek's partner and assistant. He cares a lot about Dong Baek and tries his best to help the latter.
Special Investigation Headquarters
Kim Yoon-hee as Jung Mi-ja
A criminal profiler that gathers intelligence about the serial murder case under Superintendent Han Sun-mi.
Im Se-joo as Lee Seul-bi
A criminal profiler that gathers intelligence about the serial murder case under Superintendent Han Sun-mi.
Jung Ha-joon as Hwang Bong-gook
A law student that become a detective. He specializes in hacking computer systems. He has a crush on Han Sun-mi, who was his lecturer from his student days and is very loyal to her.
An illegitimate child of a conglomerate chairman and a shaman, Jin Jae-gyu live a hellish life after his shaman mother died from poisoning. He was possessed by the spirit his mother served, and obtain the power to predict the future. He was a serial vigilante murderer named The Executioner, who killed people that got away with their wrong doings and is suspected as The Eraser. He is also the one who killed Han Sun-Mi's father for what he had done to the workers.
Lee So-yoon as Shim Sang-ha
Jin Jae-gyu's stepdaughter, whom he loves most. As a child, she ran away from home after her mother committed suicide along with her lover as she believe they were murdered by her stepfather.
Kang Hyun-jung as Shim Hyo-sook
She was Jin Jae-gyu's wife and Sang-ha's mother. She only married him to take the money he inherited. She plans on killing him and leaving her daughter behind before running away with his money and her lover, Sang-ha's biological father.
Lee Whee-Hyang as Hwang Pil-Seon
She is Jin Jae-guy's step sister, a devilish woman that would do anything to protect her family's reputation. She covered up her son's crime from 20 years ago and got rid of everyone involved. She is arrested in the end.
Hwang Pil-seon's only son, a former assemblyman and highly influential politician. He is head of the gangs that rape and kill the girl named Song-A who is the daughter of the chief of the fire department and Song Ju-ran's best friend. He is arrested in the end for his crime but committed suicide in prison out of shame.
Kim Young-mi as Eun Soo-kyung
Bang Joo-seok's wife. She was abducted by The Eraser while being 7 months pregnant.
Bang Joon-seok's personal maid and an accomplice of his wife's abductor. It is revealed that she is Sung Ju-ho's older sister who possesses the same memory-reading power as him but she also possesses the ability to erase people memories. She is the serial killer known as the Eraser.
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This drama aired on a cable channel/pay TV which normally has a relatively smaller audience compared to free-to-air TV/public broadcasters (KBS, SBS, MBC and EBS).
