With interviews from the detectives who worked the cases and victims who survived their attacks, this series looks at some of the most prolific serial killers the world has ever seen.
| Season | From | To | Episodes |
|---|---|---|---|
| All Seasons | |||
| Specials | 0 | ||
| Season 1 | March 2018 | April 2018 | 8 |
| Season 2 | May 2018 | July 2018 | 10 |
| Season 3 | April 2019 | March 2020 | 10 |
| Season 4 | May 2020 | July 2020 | 10 |
| Season 5 | January 2021 | March 2021 | 10 |
| Season 6 | October 2021 | December 2021 | 10 |
| Season 7 | November 2022 | January 2023 | 10 |
| Season 8 | November 2023 | January 2024 | 10 |
| Unassigned Episodes | 58 |
| Season | From | To | Episodes |
|---|---|---|---|
| All Seasons | |||
| Specials | 0 | ||
| Season 1 | March 2018 | April 2018 | 8 |
| Season 2 | May 2018 | July 2018 | 10 |
| Season 3 | April 2019 | March 2020 | 10 |
| Season 4 | May 2020 | July 2020 | 10 |
| Season 5 | January 2021 | March 2021 | 10 |
| Season 6 | October 2021 | December 2021 | 10 |
| Unassigned Episodes | 78 |
| Season | From | To | Episodes |
|---|---|---|---|
| Season 1 | 0 | ||
| Unassigned Episodes | 136 |
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