Lucifer[1] (Korean: 마왕; Hanja: 魔王; RR: Mawang) is a 2007 South Korean television series starring Uhm Tae-woong, Shin Min-a, and Ju Ji-hoon. It aired on KBS2 from March 21 to May 24, 2007 on Wednesdays and Thursdays at 21:55 for 20 episodes.
A string of murders brings together a conflicted detective, a psychic librarian, and a mysterious lawyer with dubious motives. Detective Kang Oh-soo (Uhm Tae-woong) is assigned to two seemingly unrelated murder cases, where the only clues left behind are tarot cards, with the first card meaning "judgment." This leads him to Seo Hae-in (Shin Min-a), a quiet librarian who has the uncanny ability to make a psychic connection to an object to discover its history. She reveals to him that the victims were connected to the death of a high school boy years ago. The one common link between the suspects is their defense attorney, Oh Seung-ha (Ju Ji-hoon), a young lawyer who is seemingly kind and altruistic. Hae-in and Seung-ha later fall in love, though Oh-soo also has feelings for her.
As the culprit continues to leave clues, more lives are ruined and the body count rises. Oh-soo races to uncover the truth, but he is also haunted by the sins of his past which he has been trying to atone for. An incident in his youth 12 years ago has snowballed into a larger tragedy, and the two men involved are destined to face each other again, unsure who is good and who is evil.
A 29-years old detective who works in the violent crimes division. He is energetic, brave, relentless in his duties, and a straight talker. Oh-soo comes from a rich family and is the second son of a famous politician. During his middle school years, he was considered a troublemaker and a bully. At 17, he stabbed a fellow student to death during an argument. To atone, he turned away from his dark past.
A 24-years old librarian who possesses an ability for psychometry and is knowledgeable about tarot cards. Bright and optimistic, she lives with her widowed mother, who is deaf and mute. Hae-in learned about her supernatural ability when she was 12 years old.
A 28-years old public defender. Known for his kindness, Seung-ha frequently volunteers at a soup kitchen, and always listens intently to his client's problems and suggests solutions. 12 years ago, his life changed after the death of his older brother, followed shortly by his mother's death due to shock and grief. He disappeared after graduating from middle school, and resurfaces as a lawyer. While hiding his real identity, he meticulously prepares for revenge.
