Investigation Discovery TV Guide — Saturday, 18 July 2026

Browse the full Investigation Discovery TV guide for Saturday, 18 July 2026. 23 programmes listed , including 6 tonight. US listings updated daily — scroll down to tonight's highlights or use the day tabs above to browse the weekly schedule.

Early Morning

00:00 1h

American Detective with Lt. Joe Kenda

S5 · E4 · First to Die True

First to Die

An unknown killer executes a seemingly perfect family in their upscale Florida home. Detective EvaMarie Multari searches for answers.

01:00 1h

American Detective with Lt. Joe Kenda

S5 · E2 · The Desert City Murders True

The Desert City Murders

When investigators find a series of homeless men bludgeoned to death at the same intersection, Las Vegas fears who could be next.

02:00 1h

American Detective with Lt. Joe Kenda

S5 · E3 · To Kidnap a Prince True

To Kidnap a Prince

When kidnappers snatch the heir to a multi-million-dollar empire for ransom, the FBI races to get him back. A piece of surveillance footage reveals a plot.

03:00 1h

American Detective with Lt. Joe Kenda

S5 · E4 · First to Die True

First to Die

An unknown killer executes a seemingly perfect family in their upscale Florida home. Detective EvaMarie Multari searches for answers.

04:00 1h

American Detective with Lt. Joe Kenda

S5 · E1 · Man's Best Friend True

Man's Best Friend

A 911 call leads police to a field in rural Texas, where they make a grotesque discovery, the flaming corpse of an unidentified woman.

05:00 1h

48 Hours on ID

S20 · E13 · For the Love of Cayley Mandadi True

For the Love of Cayley Mandadi

When college student Cayley Mandadi dies with strange bruises, her family refuses to give up their quest to prove her death was not an accident.

Morning

06:00 1h

48 Hours on ID

S20 · E2 · Who Wanted Nicki Lenway Dead? True

Who Wanted Nicki Lenway Dead?

Crime scene investigator Nicole Lenway was shot in broad daylight, and even though she miraculously survived the identity of her assailant remained a mystery.

07:00 1h

The Bakersfield 3: A Tale of Murder and Motherhood

S1 · E1 · One Mystery - or Three? Documentary

One Mystery - or Three?

When two friends go missing in Bakersfield, Calif., and another is murdered in the space of one month, their mothers fear something sinister is looming.

08:00 1h

The Bakersfield 3: A Tale of Murder and Motherhood

S1 · E2 · The Boogieman of Bakersfield Documentary

The Boogieman of Bakersfield

Terrifying discoveries in the local waterways solidify the mothers' fears that their cases are connected, as the kids were all on dark paths.

09:00 1h

The Bakersfield 3: A Tale of Murder and Motherhood

S1 · E3 · Fight Like a Mother Documentary

Fight Like a Mother

Police hunt for Micah's killer and evidence points to someone he knew and an arrest furthers the investigation, but answers won't come easily.

10:00 1h

Deadly Influence: The Social Media Murders

S2 · E4 · Enter the Ghost World Documentary

Enter the Ghost World

When the lines begin to blur between Randy's supermarket day job and his online fantasies, he looks for control wherever he can find it.

11:00 1h

Deadly Influence: The Social Media Murders

S2 · E5 · Devil in Disguise Documentary

Devil in Disguise

April shines positivity, growing her TikTok. After a tragic incident, April's mom gets on TikTok and uncovers secrets that shock everyone watching.

Daytime

12:00 1h

Deadly Influence: The Social Media Murders

S2 · E6 · Cruel Intentions Documentary

Cruel Intentions

Hashim's small-town fame inspires a local soccer team Hashim United. One day a friend's favor pulls him into a world he cannot escape.

13:00 1h

Deadly Influence: The Social Media Murders

S2 · E7 · Death Is in Your Stars Documentary

Death Is in Your Stars

Online astrologer, healer, and witch Danielle is a rising mystic influencer. When critics emerge and a man falls for her charm, their magic takes a darker turn.

14:00 1h

Fear Thy Neighbor

S8 · E3 · The Next Door War Documentary

The Next Door War

An army veteran ignites a war between the two military men that spirals out of control until the feud finally ends in a hail of bullets.

15:00 2h

Fear Thy Neighbor

S8 · E13 · Inferno of Hate Documentary

Inferno of Hate

A lifelong resident of his neighborhood despairs when he sees it descend into vice and criminality and he turns his wrath on all those he deems responsible.

17:00 1h

A Killer Among Friends

S1 · E1 · Killer on Campus Documentary

Killer on Campus

A gunman kills a University of Kentucky football player at his birthday party, but despite a house full of witnesses, no one saw the shooter.

Evening

18:00 1h

A Killer Among Friends

S1 · E5 · Secrets to Reveal Documentary

Secrets to Reveal

Best friends take a girl's trip before applying to grad school, but when one of them doesn't make it home, everyone wonders what happened in Las Vegas.

19:00 1h

A Killer Among Friends

S1 · E6 · Friendship in Disguise Documentary

Friendship in Disguise

A killer stabs UCLA student Ron Baker to death in a train tunnel known for its connection to the Manson murders and occult rumors begin to spread.

20:00 1h

A Killer Among Friends

S1 · E4 · She's No Runaway Documentary

She's No Runaway

When a middle schooler vanishes without a trace, suspicion quickly falls on the new circle of older friends she's been spending time with.

21:00 1h

Married with Secrets

S1 · E8 · The Mastermind Documentary

The Mastermind

Detectives search for a thief who has stolen expensive yachts, but they later encounter a calm man who has been connected to more than just stealing a boat.

22:00 1h

Married with Secrets

S1 · E1 · Dr. Deception Documentary

Dr. Deception

A wife surprisingly encounters her husband's other wife after he becomes the victim of a hit-and-run, which leads to her being introduced to his double life.

23:00 1h

Hitchhiking Horror

Documentary Special

When 21-year-old Melody Lopez vanishes during a cross-country trip with her boyfriend, her father traces her last known location to a remote Ontario cabin.

Early Morning

Morning

Daytime

Evening

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