8 episodes
First episode: E1
999: Killer On The Line
This series looks at murders that were callously planned and premeditated, with the emergency calls originating from the killer themselves.
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8 episodes
First episode: E1Show FAQ
Quick answers about this series, release status, and episode totals.
When did 999: Killer On The Line first air?
999: Killer On The Line first aired on April 18, 2016.
How many seasons and episodes does 999: Killer On The Line have?
999: Killer On The Line currently has 2 seasons and 16 episodes.
When is the next episode of 999: Killer On The Line?
999: Killer On The Line is ended, and no upcoming episode is currently scheduled.