Police officers investigate dark secrets that link a series of present-day murders with puzzling incidents that took place in a town 28 years ago.
1 - 1The Forewarned Murders Nov. 30, 2020
1 - 2The Smiles Dec. 01, 2020
1 - 3The Survivors Dec. 07, 2020
1 - 4The Fire Dec. 08, 2020
1 - 5The Safe Dec. 14, 2020
1 - 6The Mutants Dec. 15, 2020
1 - 7Jung Woo Being Chased Dec. 21, 2020
1 - 8Secret Lab Dec. 22, 2020
1 - 9Kids Adopted Dec. 28, 2020
1 - 10Jung Woo Following Kids Dec. 29, 2020
1 - 11New Warning Jan. 04, 2021
1 - 12The Reunion Jan. 05, 2021
1 - 13The Secret Lab Jan. 11, 2021
1 - 14Jung Woo in Secret Lab Jan. 12, 2021
1 - 15Reunion with Mother Jan. 17, 2021
1 - 16Mother and Son Jan. 18, 2021