Investigation Discovery TV Guide — Thursday, 21 May 2026

Browse the full Investigation Discovery TV guide for Thursday, 21 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

S13 · E22 · A Mystery in Lakeland True

A Mystery in Lakeland

When a young woman turns up murdered, the police try to retrace her last known movements and reveals two different possibilities of how she was killed.

01:00 1h

American Detective with Lt. Joe Kenda

S5 · E7 · Puppet Master True

Puppet Master

Investigators initially suspect a demonic sacrifice when they find a mother executed in an abandoned building, and an evil conspiracy is exposed.

02:00 1h

On the Case with Paula Zahn

S14 · E6 · Who Killed Katelyn? True

Who Killed Katelyn?

A young woman mysteriously disappears. Friends and family are terrified, but investigators find little to go on. A shocking discovery confirms the worst.

03:00 1h

On the Case with Paula Zahn

S13 · E22 · A Mystery in Lakeland True

A Mystery in Lakeland

When a young woman turns up murdered, the police try to retrace her last known movements and reveals two different possibilities of how she was killed.

04:00 1h

American Detective with Lt. Joe Kenda

S3 · E6 · Torso True

Torso

Investigators discover the remains of two dismembered women amongst the ashes of a barn fire and Agent Nick Deming uncovers a twisted revenge scheme.

05:00 1h

Calls from the Inside

S1 · E2 · The Real Jail Wives Other

The Real Jail Wives

Kim Boone and Anita Smithey have much in common, they're middle-class moms in their 40s, and both attempted to kill their husbands.

Morning

06:00 1h

Calls from the Inside

S1 · E5 · Jealousy's Killer Web Other

Jealousy's Killer Web

Julii Johnson lies dead in front of her boyfriend's home in Warren, Michigan, in 2017, and detectives uncover a complicated plot, but no one is talking.

07:00 1h

Stranger Among Us

S1 · E4 · Flames of Fury Documentary

Flames of Fury

A tightknit community of West Virginia firefighters is horrified when they discover that a suspicious fire is hiding a triple murder.

08:00 1h

Stranger Among Us

S1 · E1 · Horror on the Homestead Documentary

Horror on the Homestead

Three respected members of a tightknit community of award-winning Christmas tree farmers are brutally gunned down by a cold-blooded killer.

09:00 1h

Stranger Among Us

S1 · E3 · Homicide on the Rails Documentary

Homicide on the Rails

When a college student infiltrates a community of train hoppers, a spring break adventure turns deadly.

10:00 1h

Hometown Homicide

S1 · E2 · Local Girl Gone True

Local Girl Gone

When 15-year-old student Danielle Locklear, of Hope Mills, N.C., went missing in March 2014, her family and friends think a killer is in their midst.

11:00 1h

Hometown Homicide

S1 · E1 · All News is Local True

All News is Local

The neighborhood of Aiken, S.C., goes on high alert after 17-year-old Jessica Carpenter is sexually assaulted and murdered in her home in August 2000.

Daytime

12:00 1h

Hometown Homicide

S1 · E3 · In the Neighborhood True

In the Neighborhood

When 44-year-old high school Spanish teacher, Theresa Lockhart, of Portage, Mich., went missing in May 2017, her vehicle is discovered with nothing inside.

13:00 1h

Murder Comes to Town

S4 · E1 · Wicked Witness Documentary

Wicked Witness

In Walsenburg, Colo., a panic-stricken 911 call to help an assaulted neighbor leads to a bizarre investigation in the small community.

14:00 1h

Murder Comes to Town

S4 · E4 · Who's Missing Now Documentary

Who's Missing Now

Foul play is immediately suspected when a young waitress suddenly vanishes, and rumors of her fate connect her to another mysterious disappearance.

15:00 1h

Murder Comes to Town

S4 · E5 · Answering the Call Documentary

Answering the Call

When a fire is reported in Winchester, Tenn., responders are shocked to discover the body of a young woman at the center of the blaze beaten, raped and burned.

16:00 1h

Fear Thy Neighbor

S4 · E9 · Mountain of Madness True

Mountain of Madness

A wealthy executive forbids his neighbors access to his lands; a handyman fights to keep the roads open for all, but it leads to a struggle that ends deadly.

17:00 1h

Fear Thy Neighbor

S4 · E8 · Monkey in the Middle True

Monkey in the Middle

When tensions between neighbors, which include a former marine with post-traumatic stress disorder, come to a boiling point, it ends in a deadly confrontation.

Evening

18:00 1h

Fear Thy Neighbor

S4 · E10 · Boiling Point True

Boiling Point

Two women living in an apartment building were initially friends, but later became enemies, prompting them to engage in a feud that ends in horrific violence.

19:00 1h

Fear Thy Neighbor

S4 · E3 · Hysteria Lane True

Hysteria Lane

A couple gets excited when a family moves in across their street, but their relationship takes a turn and tensions rise, leading to a deadly conflict.

20:00 1h

Fear Thy Neighbor

S4 · E4 · Feud on the Frontier True

Feud on the Frontier

Two frontiersmen get into a conflict after one's dog scares the other's family, resulting in one of the men being shot and the other to standoff with police.

21:00 1h

People Magazine Investigates

S3 · E4 · Gone Girls True

Gone Girls

When three women over three decades meet their death or go missing under mysterious circumstances, authorities attempt to find a connection between them.

22:00 2h

Hollywood Demons

S2 · E4 · Doctor Feelgoods Entertainment

Doctor Feelgoods

A celebrity overdose makes headlines but revered professionals behind the scenes often go unnoticed. Doctors are under the microscope for celebrity deaths.

Early Morning

Morning

Daytime

Evening

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