Investigation Discovery

Courtney thinks Mike is vulnerable, kind and sweet; when she finally has enough of his jealousy of everyone in her life, his rage explodes.

When Abbi sees her boyfriend's darkness, she tries to help but cannot; she hopes being a father will change him, but it doesn't; when his cruelty becomes too much to handle, she leaves and discovers who her boyfriend was all along.

When Felisha meets Wesley, she is a single mom with no place to live; he gives her a home, but after they are married and have kids, she discovers he is selfish and unkind. When she finally leaves him, he exacts the cruelest revenge.

The key to solving homicides lies somewhere within the final 24 hours of the victim's life.

Unwilling to give up his playboy lifestyle, a man strangles his wife to death and uses an air conditioner to fudge the time of her death.

A man with a genius-level IQ uses an extremely rare poison to kill his annoying neighbor simply to prove that he can get away with the perfect murder.

Through emoji-laden text messages, a troubled girl plots with her boyfriend to kill her father while on holiday; they hide his body in a suitcase to cover up their crime.

A woman kills both her ex-husband and her lover because they won't allow her to have a baby; she dismembers their bodies and hides their remains in the freezer at her vegan artisanal gelato shop.

Unwilling to give up his playboy lifestyle, a man strangles his wife to death and uses an air conditioner to fudge the time of her death.

A man with a genius-level IQ uses an extremely rare poison to kill his annoying neighbor simply to prove that he can get away with the perfect murder.

Through emoji-laden text messages, a troubled girl plots with her boyfriend to kill her father while on holiday; they hide his body in a suitcase to cover up their crime.

A woman kills both her ex-husband and her lover because they won't allow her to have a baby; she dismembers their bodies and hides their remains in the freezer at her vegan artisanal gelato shop.

Unwilling to give up his playboy lifestyle, a man strangles his wife to death and uses an air conditioner to fudge the time of her death.

A man with a genius-level IQ uses an extremely rare poison to kill his annoying neighbor simply to prove that he can get away with the perfect murder.

Through emoji-laden text messages, a troubled girl plots with her boyfriend to kill her father while on holiday; they hide his body in a suitcase to cover up their crime.

A woman kills both her ex-husband and her lover because they won't allow her to have a baby; she dismembers their bodies and hides their remains in the freezer at her vegan artisanal gelato shop.

Two South Carolina women make unthinkably horrifying discoveries on their doorsteps, including ominous death threats and trash bags containing severed human appendages.

A farmhand goes missing from a sprawling cattle ranch, but the case takes a sinister turn when his body shows up miles down the Coweeman river.

When a young woman turns up dead in south Texas, Captain Federico Calderon fears the killer has disappeared into Mexico; as more bodies turn up, investigators pick up on the trail of a serial killer, leading to a showdown in the streets of Laredo.

In rural Minnesota, a masked murderer bludgeons an entire family in their sleep; as small-town secrets unravel, Sheriff Mike Gormley uncovers a dangerous love triangle and a vengeful killer who is willing to risk his own blood for retribution.

After someone executes a charismatic New Hampshire businessman in his sleep, the case goes ice cold; detective Robert Freitas uses his wits and a wiretap to outsmart a deceitful associate who believed he'd long since gotten away with murder.

In 2015, the East Coast experiences the first major terrorist attack since 9/11. The FBI carries out an intense 72-hour investigation with multiple bombings across New Jersey and New York. Now, they race to track down the bomber and save thousands.

In 2018, 26-year-old Kierra Coles vanishes while three months pregnant; Detective Pam Childs uncovers a derailed police investigation and secret relationship, and potentially identifies CPD's previously unnamed person of interest.

A 911 call comes in from the quiet luxury neighborhood of Ponte Vedra; a husband reports the kidnapping of his wife; the FBI races against time in the hope of locating the mom-of-two alive, but this case takes agents by surprise.

When 21-year-old Diamond Bynum and her 2-year-old nephew, King, vanish from their Gary, Ind., home, police first think they simply wandered off, but with no trace for years, the case turns dark.

In 2015, the East Coast experiences the first major terrorist attack since 9/11. The FBI carries out an intense 72-hour investigation with multiple bombings across New Jersey and New York. Now, they race to track down the bomber and save thousands.

A 911 call comes in from the quiet luxury neighborhood of Ponte Vedra; a husband reports the kidnapping of his wife; the FBI races against time in the hope of locating the mom-of-two alive, but this case takes agents by surprise.

When 21-year-old Diamond Bynum and her 2-year-old nephew, King, vanish from their Gary, Ind., home, police first think they simply wandered off, but with no trace for years, the case turns dark.