Adamas

Twenty-two years after their father's murder, twin brothers Woosin and Suhyeon embark on a journey to uncover the truth. Woosin, now a bestselling mystery novelist, discovers that the murder weapon is a diamond-tipped arrow called Adamas. He infiltrates the mansion of Kwon Jaegyu, the Chairman of Haesong Group, as a ghostwriter for his memoir. Suhyeon, an elite prosecutor, reopens the case after meeting Seohui, a determined journalist who seeks to expose the truth. As they delve deeper into the past, they unravel a complex web of secrets and lies that threaten to destroy their family's reputation. The pursuit of justice leads them down a dangerous path where the line between truth and deception blurs.

You can stream Adamas on: Hulu Disney+ ⎥ Hulu

Some TV shows that have similar genres and were produced around the same time as Adamas include Nocturne, Crystal Lake, A Couple of Lies, Yaga, Carrie, Small Prophets.