Audio evidence helps police solve real-life homicides. From random killings and revenge hits to America's most depraved serial killers, detectives discover audio evidence of the most harrowing cases in history.
EPISODE 1
Whispers From The Dead
In Little Falls, Minnesota, a retiree is disturbed by a home invasion, which ends in a grim double murder. Audio recordings of the killings reveal what happened.
EPISODE 2
Death By Design
A couple's fight reaches a tragic end when one of them is shot. A tape recorder that has captured the victim's final words becomes evidence in a murder trial.
EPISODE 3
Sex, Lies And Audiotape
A mother accused of murder must clear her name by secretly recording a confession from the man she claims is framing her, and sordid revelations emerge.
EPISODE 4
Ghost In The Machine
After a mother is shot dead next to her toddler, it sparks a murder investigation of passion, kidnapping and intimidation. Could a Dictaphone reveal the killer?
EPISODE 5
The Sound Of Terror
In 1983, the Secret Service trails a counterfeiter. The audio recordings they find of him torturing women reveal one of history's most depraved serial killers.
EPISODE 6
Dead And Deleted
A mum in Georgia is killed after vanishing from home. Audio files captured by her tech-obsessed husband offer vital clues, and reveal a disturbing secret.
