Watch 999: Killer On The Line Online

This series looks at murders that were callously planned and premeditated, with the emergency calls originating from the killer themselves. Read More

Watch 999: Killer On The Line online. Featuring , 999: Killer On The Line has 2 seasons and 16 episodes in total. It is available for streaming online in the UK on 2 services such as Sky Go and Crime+ Investigation Play Amazon Channel. It is classified as Crime and Documentary genre series and the average rating across the web is 8. The TV series was first aired on 2016. Read Less