2016 | 10 Episodes

Season 1 of Cold Case ~Shinjitsu no Tobira~ premiered on October 22, 2016.

2018 | 10 Episodes

Season 2 of Cold Case ~Shinjitsu no Tobira~ premiered on October 13, 2018.

2020 | 10 Episodes

Season 3 of Cold Case ~Shinjitsu no Tobira~ premiered on December 5, 2020.