Murder Calls

Murder Calls is an American documentary which aired on Investigation Discovery. The series premiered on January 1, 2017.

Investigation Discovery's true-crime storytelling is often rooted in its award-winning visuals, but it's audio from actual 911 calls that sets the tone in Murder Calls. Each hour-long episode tracks a criminal investigation in which detectives must decipher the contents and subtext of an emergency call. As the case moves forward, the 911 audio ultimately leads investigators to the truth.