Browse the full Investigation Discovery TV guide for Monday, 19 October 2026. 26 programmes listed , including 6 tonight. UK listings updated daily — scroll down to tonight's highlights or use the day tabs above to browse the weekly schedule.
Early Morning
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00:00 1h
Murder Loves Company
S1 · E1 · Killer Cover-upA holiday resort co-worker's disappearance on a desolate mountainAfter a friend and holiday resort co-worker went missing on a desolate mountain, detectives had to sort through a list of tight-knit colleagues with potential motives for murder. One of them proved to have crucial information that would lead to a killer among them -
01:00 1h
Murder Loves Company
S1 · E2 · Friends to the EndA restaurant worker killed and left on a soccer pitchClose-knit co-workers are devastated when one of their own is found dead near a soccer pitch at the edge of their quiet Indiana town. Investigators considered whether this murder was a random act of violence -
02:00 1h
The Perfect Murder
S4 · E3 · Ride with the DevilThe case of car dealer Christopher O'BrienThe case of 26-year-old car dealer Christopher O'Brien, who in February 1992 took a man for a test drive and never returned to his Long Island premises. Officers contemplated whether O'Brien's criminal past finally had caught up with him -
03:00 1h
The Perfect Murder
S4 · E4 · Fade to BlackThe death of film director Adrienne ShellyThe death of film director Adrienne Shelly, who was found hanging by a bed sheet in her bathroom in November 2006. It looked like a suicide, but her husband's claims it was a murder were later validated when an Ecuadorian illegal immigrant admitted staging the scene to prevent her forcing his deportation for an earlier altercation -
04:00 1h
Murder in the Heartland
S2 · E2 · Bad for BusinessThe murder of successful business owner MaryAnn ClibberyThe murder of successful business owner MaryAnn Clibbery in Illinois. A suspicious bag floating on the ice in the river unlocked the secrets of her slaying -
05:00 1h
Murder in the Heartland
S2 · E3 · If the Walls Could TalkThe murder of Barbara HoweThe case of Barbara Howe, who vanished from her retirement community in Ohio in 2015. The body of the 87-year-old was later found in the boot of a car
Morning
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06:00 30m
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06:30 30m
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07:00 30m
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07:30 30m
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08:00 1h
The Killer Beside Me
S3 · E1 · Schooled in MurderA case in which two secretaries vanished in broad daylightHow a lunch break became a nightmare for two educational secretaries who vanished in broad daylight. One woman was found dead, launching a desperate search for her missing friend as police suspected the perpetrator of the crime had ties with their school -
09:00 1h
The Killer Beside Me
S3 · E2 · Carpool PredatorA case in which an employee of an exotic wildlife park vanishedA case in which an employee of an exotic wildlife park vanished. As the search for the missing woman intensified, investigators feared the predator responsible was not an animal -
10:00 1h
The Killer Beside Me
S3 · E3 · Danger TravelsA stalker who tracked a woman down to carry out a twist planA case in which a retail store employee's crush on his manager escalated into an obsession. When she moved state, the stalker tracked her down to carry out a twist plan -
11:00 1h
The Killer Beside Me
S3 · E4 · Pressure PointThe disappearance of a massage therapist from Virginia BeachThe disappearance of a massage therapist from Virginia Beach. Weeks later, a cyclist made a discovery that would rock the town and change lives for ever
Daytime
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12:00 1h
Murder in the Heartland
S2 · E2 · Bad for BusinessThe murder of successful business owner MaryAnn ClibberyThe murder of successful business owner MaryAnn Clibbery in Illinois. A suspicious bag floating on the ice in the river unlocked the secrets of her slaying -
13:00 1h
American Monster
S5 · E7 · My BodyThe murder of Sandra Miles by her daughter Tracie Lynn MilesThe killing of Sandra Miles by her daughter. Tracie Lynn Miles testified she was under the influence of an abusive boyfriend - who was also convicted in the 1998 strangulation and bludgeoning death -
14:00 1h
American Monster
S5 · E9 · Have You Seen This Woman?The murder of two family membersHow, a couple raising their children in an idyllic rural town, found their quiet lives turned upside down when two of the family were found brutally murdered -
15:00 1h
Evil Online
S4 · E2 · High on LoveThe case of Brandon WentzellThe case of high school student Brandon Wentzell, who fell for Clarissa Chistiakov online. However, Chistiakov was a fake identity and its creator Jessica Boudreau led Wentzell on, inadvertently towards abusing alcohol and painkillers to his untimely death -
16:00 1h
Evil Online
S4 · E5 · Final SaleThe murder of 50-year-old real-estate agent Beverly CarterThe case of real-estate agent Beverly Carter, who failed to return after arranging to meet a prospective buyer at a remote Arkansas house in September 2014. After her body was discovered in a shallow grave, Arron Lewis was accused of kidnapping and killing the 50-year-old as a part of a ransom plot -
17:00 1h
Evil Online
S4 · E7 · Playing DoctorThe case of Jeffrey MarsalisThe case of Jeffrey Marsalis, who had both charm and good looks but was a sexual predator and would take women on dates and drug them. Two of his victims, JoAnn Buttaro and Jessika Rovell, recall their experiences
Tonight's Highlights
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18:00 1h
Evil Online
S4 · E8 · Searching for Mr WrongThe murder of Nikki McPhatterThe case of 30-year-old US Airways employee Nikki McPhatter, who was shot dead by Theodore Manning in May 2009 while visiting his home to end their relationship -
19:00 1h
On the Case with Paula Zahn
S12 · E31 · Confessions and LiesA young woman is brutally murdered in her homeWhen a young woman is brutally murdered in her home, police must sort through confessions and lies in their hunt for a cold and calculating killer -
20:00 1h
On the Case with Paula Zahn
S12 · E32 · Pretty Pink BicycleA young girl vanishes on a trip to the mailboxA young girl vanishes on a trip to the mailbox. Will her abandoned pink bicycle be the key to solving the disturbing mystery -
21:00 1h
Lethally Blonde
S2 · E6 · Killing King CobraA fire in Pennsylvania reveals the body of a pornographic film directorIn 2007, a devastating house fire in Dallas Township, Pennsylvania, reveals the nearly decapitated body of a pornographic film director -
22:00 1h
People Magazine Investigates
S9 · E8 · The Serial Killer who Only Killed OnceA relentless investigation circles the husband of murdered Robin LawrenceThe weekend before Thanksgiving, a killer slays Robin Lawrence at home while her child is asleep. A relentless investigation circles her husband -
23:00 1h
Body Cam
Seconds From DeathShots are fired when police officers confront an armed criminal on a busShots are fired when police officers confront an armed criminal on a bus. An officer risks her life to save a man in a wheelchair from a high-speed train