Christmas Carol

adult

redemption, revenge, isolation, moral ambiguity, justice, loss, coming of age, family tragedy, crime, psychological torment, troubled youth, juvenile detention, undercover mission, dark thriller, vengeance plot, dangerous game, twin brother death, 2010s, avenge, bleak, brother, bullying, captivating, christmas eve, crime drama, criminal's revenge, dark, death of brother, emotional, family tragedy, grief, investigation, isolation, jail, justice, juvenile detention, korea, loss of brother, moral ambiguity, murder, murderer, obsession, prison, prison life, psychological, retribution, revenge, suspense, suspenseful, tense, thrilling, twin brother, vengeance, vigilante

South Korea