nvestigation 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 hourlong 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.
A man calls 911 claiming he found his ex-girlfriend dead, but his behavior on the call leads police to wonder if he could be involved; investigators gather evidence to convict a killer whose unchecked rage left a young son motherless.
When a young woman is shot dead in front of her son, horrified witnesses call 911 and describe the shooter as a slender man who disappeared into nearby trees; though clues are scarce, investigators finally uncover the killer's shocking identity.
A woman calls 911 to say she's found her son unconscious in his home; when police arrive, they realize he's dead; the victim's hands are bound, and he's been strangled; at first, it seems like a burglary gone bad, but police soon discover otherwise.
With the help of a neighbor, an injured woman calls 911 saying an intruder broke into her boyfriend's home and shot them both; police respond to find the boyfriend executed; they must decipher strange evidence left behind to identify the killer.
A dying man calls 911 to say he's been shot in the heart and his son has been shot dead; after the shooter escapes into the night, the detectives must navigate a complex group of suspects to uncover a tangled web of rage and revenge.
Two girls disappear from neighboring counties, and they are later found murdered; one family receives multiple taunting calls from the killer; investigators work to track him down and succeed after discovering a clue delivered by the killer himself.
A terrified neighbor calls 911 after witnessing a young mother being gunned down in her driveway; police work to uncover a complex conspiracy that ripped the loving mother from her three children, just to keep dark secrets hidden.
A frantic woman calls 911 when she finds her husband shot to death; the investigation reveals allegations of harassment from the victim's ex-lover and eventually uncovers a complex trail of deceit, in a murder that was years in the making.
Calling 911, a woman whispers that intruders have broken into her home and attacked her husband; police arrive to find the husband dead and the killers gone; investigators struggle to expose the twisted mastermind behind the crime.
A frantic woman calls 911 saying an intruder just entered her home and shot her husband; when a local fire chief dies from his injuries, first responders work tirelessly to find out who killed one of their own.
Church parishioners call 911 when they find their priest stabbed to death, then police uncover an earlier 911 call made by the priest himself and track a missing cell phone to find his killer.
In a distressing 911 call, a woman reports someone is breaking into her home, then the dispatcher hears a scream and a gunshot; investigators soon connect the case to a previous home invasion and race to solve the crimes.
A man calls 911 screaming for help but is too terrified to give his address, and police scramble to find him; as detectives investigate, they uncover a shocking tale of torture and revenge that demonstrates the deadliness of unrequited love.
A panicked woman calls 911 to say a stranger forced his way into her home and shot her boyfriend in front of their children; detectives untangle a twisted web of jealousy to find out who killed this young father and why.
Two distraught women call 911 when they discover their sister brutally murdered. Soon, detectives uncover a stunning surprise and struggle to find a killer whose self-hatred drove him to commit the ultimate sin, in a precedent-setting case.