| Created By | ||
|---|---|---|
| Status | Returning Series | |
| Original Name | NHKスペシャル 未解決事件 | |
| First Air Date | July 29, 2011 | |
| Last Air Date | March 30, 2024 | |
| Seasons | 8 | |
| Episodes | 20 | |
| Episode Runtime | 0min | |
| Language | Japanese | |
| Original Language | Japanese | |
| Production Countries | — | |
| Production Companies | ||
| Networks | NHK | |