999: Killer On The Line (2016)
| First Air Date: | 2016, April 18 |
| Last Air Date: | 2018, August 27 |
| Status: | Ended |
| Seasons: | 2 |
| Episodes: | 16 |
| Episode Runtime: | 45 min |
| Countries: | United Kingdom |
Overview:
This series looks at murders that were callously planned and premeditated, with the emergency calls originating from the killer themselves.