Investigation Discovery TV Guide — Monday, 18 May 2026

Browse the full Investigation Discovery TV guide for Monday, 18 May 2026. 23 programmes listed , including 5 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

On the Case with Paula Zahn

S12 · E1 · A Mother Knows True

A Mother Knows

A female active-duty soldier dies in a brutal attack during a night out with members of her unit, and police try to determine the motive for her murder.

01:00 1h

Evil Lives Here: My Child the Killer

S1 · E5 · The Child I Thought I Knew Other

The Child I Thought I Knew

A single mom overcoming addiction struggles to raise her son & daughter. Despite what appears to be a loving family and a sibling bond she could only hope for.

02:00 1h

On the Case with Paula Zahn

S14 · E5 · Through the Smoke True

Through the Smoke

Police retrace the steps of a young woman's preparations for a romantic Valentine's dinner that ended in her brutal murder.

03:00 1h

On the Case with Paula Zahn

S12 · E1 · A Mother Knows True

A Mother Knows

A female active-duty soldier dies in a brutal attack during a night out with members of her unit, and police try to determine the motive for her murder.

04:00 1h

American Detective with Lt. Joe Kenda

S5 · E5 · The Curse True

The Curse

An attacker beats an elderly Vietnamese couple to death and stuffs them inside the closet. Detectives uncover bizarre evidence that points to a sinister plot.

05:00 1h

48 Hours on ID

S20 · E23 · The Conspiracy to Murder Jennifer Dulos True

The Conspiracy to Murder Jennifer Dulos

A woman is found guilty of conspiring to murder her boyfriend's estranged wife, but her sister believes her to be innocent of the crime.

Morning

06:00 1h

48 Hours on ID

S20 · E25 · Death by Eyedrops True

Death by Eyedrops

Jessy Kurczewski calls police to report she found Lynn Hernan dead in her recliner and when the toxicology report shows a toxic ingredient in Lynn's blood.

07:00 1h

48 Hours on ID

S20 · E4 · Unmasking the Zombie Hunter Documentary

Unmasking the Zombie Hunter

Over twenty years after a pair of young women are killed in Phoenix, Arizona, authorities get a new lead pointing to local celebrity Bryan Patrick Miller.

08:00 1h

48 Hours on ID

S20 · E12 · Shootout at the Shaughnessy's Documentary

Shootout at the Shaughnessy's

Nicolas Shaughnessy plotted to hire a hitman to murder his wealthy parents and although the gunmen succeeded in killing his father, they were soon found out.

09:00 1h

All Access PD: Grand Rapids

S1 · E4 · Cemetery Documentary

Cemetery

What seemed like an accidental overdose becomes a murder investigation when a jail informant tips off detectives on the murder of Dana Lewis.

10:00 1h

All Access PD: Grand Rapids

S1 · E8 · Patrol Documentary

Patrol

Cameras follow the work of Deputy Chief Joe Trigg must navigate the chaos of a high-stakes series of shootings, high-speed chases and standoffs.

11:00 1h

All Access PD: Grand Rapids

S1 · E1 · Fight Club Documentary

Fight Club

After the murder of 15-year-old Milli Penn, Grand Rapids detectives investigate the masked shooter, rumored to be another teenager linked to a fight club.

Daytime

12:00 1h

Valley of the Damned

S1 · E6 · Impossible Perpetrator True

Impossible Perpetrator

When 17-year-old Candace Hiltz was shot, her brother becomes the prime suspect, but with no evidence against him, the case goes cold until ten years later.

13:00 1h

Valley of the Damned

S1 · E2 · Killer Confession True

Killer Confession

When 19-year-old Lea Porter goes missing in Prison Valley in 2014, her family tries to find her on their own which leads to the discovery the killer's identity.

14:00 1h

Valley of the Damned

S1 · E2 · The Absent Father True

The Absent Father

When the body of 37-year-old Jim Durgan is found near Colorado's Prison Valley, what follows is a murky investigation that unravels a complex murder plot.

15:00 1h

See No Evil

S8 · E14 · Double Identity Documentary

Double Identity

In 2018, 59-year-old Pamela Hutchinson is found dead in her Florida condo, and the search for answers leads police to a mysterious woman spotted on CCTV.

16:00 1h

See No Evil

S8 · E10 · Rideshare Nightmare Documentary

Rideshare Nightmare

College student Samantha Josephson gets into a car she mistakes for her rideshare, never to be seen again, and police rely on CCTV footage to pick up her trail.

17:00 1h

See No Evil

S8 · E7 · Shaken and Disturbed Documentary

Shaken and Disturbed

Nancy Dunning, Ronald Kirby and Ruthanne Lodato are shot in Alexandria, Va.; detectives use security footage to track down a killer before they strike again.

Evening

18:00 1h

See No Evil

S8 · E4 · Making a Killing Documentary

Making a Killing

Michelle Mockbee goes to work early, but less than an hour later, someone murders her outside the office, and detectives find a closet full of dirty secrets.

19:00 1h

See No Evil

S8 · E8 · Final Offer Documentary

Final Offer

Single mother Laura Ackerson leaves for work one morning and never returns, but with no leads, police turn to surveillance cameras to locate her.

20:00 1h

See No Evil

S8 · E13 · Someone You Trust Documentary

Someone You Trust

In Tracy, Calif., in 2009, a little girl vanishes after playing at a friend's house, leaving her family desperate for answers, but with no leads and few clues.

21:00 1h

People Magazine Investigates

S6 · E8 · The Grudge True

The Grudge

A Mennonite woman goes missing from her small religious community in January 2020, but when they find her body, forensic evidence leads them to a dead end.

22:00 2h

Hollywood Demons

S2 · E5 · Surviving 16 and Pregnant Entertainment

Surviving 16 and Pregnant

Expecting teens meet backlash after appearing on a controversial MTV show. 16 years since the show's debut, cast members open up about the struggles they face.

Early Morning

Morning

Daytime

Evening

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