| RATING | - |
|---|---|
| GENRES | Documentary, Crime |
| YEAR | 2020s / 2021 |
| EPISODES | 20 (2 seasons) |
|---|---|
| ORIGIN | English / United States |
| AUDIENCE | PG-13 |
| Criminologists, psychologists, families of victims and murderers, and others reflect on the histories of serial killers, in search of answers. |
