Investigation Discovery TV Guide — Friday, 15 May 2026

Browse the full Investigation Discovery TV guide for Friday, 15 May 2026. 28 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

00:00 1h

The Perfect Suspect

S1 · E5 · Every Step You Take

The case of Katrina Smith

The case of 30-year old Katrina Smith. After she vanished, investigators found car and video footage of a hooded stranger the night she disappeared. Soon, dark secrets emerged

01:00 1h

The Perfect Suspect

S1 · E6 · Triangles and Tribulations

A case that began when an expectant mother got caught in a love triangle

A case that began when an expectant young mother became caught up in a complicated love triangle. Emotions ran high and heartbreak led to murder. As suspects surfaced one by one, investigators had to dig deep into the past to determine who actually committed the crime

02:00 1h

Swamp Murders

S4 · E6 · Dark Water

Killings where the bodies were located in swampland

Killings where the bodies were located in swampland, principally due to the perpetrators believing such terrain helps conceal vital evidence against them

03:00 1h

Swamp Murders

S4 · E8 · Rocky Waters

A murder in Ohio's Scioto River

How, after a baby was found abandoned along Ohio's Scioto River, police discovered the child's mother had been murdered. Officers considered whether the killer was connected to the woman's past

04:00 30m

Signs of a Psychopath

S1 · E12 · I Have a Surprise for You

A woman arrives at her parents' house to find them bleeding on the floor

A woman arrives at her parents' house to find them bleeding on the floor. Police uncover the shocking truth and confront a cunning teenage psychopath

04:30 30m

Signs of a Psychopath

S2 · E1 · I Didn't do Anything

A former escort hires a hitman to kill her husband

When a former escort hires a hitman to kill her husband, she thinks she's committed the perfect crime. Little does she know police are recording her every move

05:00 30m

Signs of a Psychopath

S1 · E4 · Where Evil Grows

A young man asks to assist in a brutal murder investigation

A young man asks to assist in a brutal murder investigation, but he may know more than they think.

05:30 30m

Signs of a Psychopath

S1 · E5 · I am the Devil

Investigators fear they may have a rare female psychopath on their hands

In Colorado, a missing woman's roommate claims she'll do anything to help find her. Investigators fear they may have a rare female psychopath on their hands

Morning

06:00 30m

Teleshopping

Home shopping

Buying goods from the comfort of home

06:30 30m

Teleshopping

Home shopping

Buying goods from the comfort of home

07:00 30m

Teleshopping

Home shopping

Buying goods from the comfort of home

07:30 30m

Teleshopping

Home shopping

Buying goods from the comfort of home

08:00 1h

Swamp Murders

S4 · E8 · Rocky Waters

A murder in Ohio's Scioto River

How, after a baby was found abandoned along Ohio's Scioto River, police discovered the child's mother had been murdered. Officers considered whether the killer was connected to the woman's past

09:00 1h

Evil Lives Here: Shadows of Death

S1 · E1 · The Path

A shocking common thread amid a stack of cold cases in Maryland

In 1997, in quaint Anne Arundel County, Maryland, a detective inherited a stack of cold cases. As he began to unravel each one, he uncovered a shocking common thread

10:00 1h

Evil Lives Here: Shadows of Death

S1 · E2 · The Ride Along

The murder of an officer during a routine traffic stop

Late one night in 1993, a California police officer was shot and killed during a routine traffic stop. The only witness was his 12-year-old nephew. However, he was too traumatised to tell police what he had seen

11:00 1h

Faking It: Tears of a Crime

S2 · E3 · Shafilea Ahmed & Gordon Wardell

The cases of Shafilea Ahmed and Gordon Wardell

The murder of building society manager Carol Wardell in September 1994, by her husband Gordon. Plus, the 'honour killing' of 17-year-old Shafilea Ahmed in September 2003, suffocated by her parents Iftikhar and Farzana

Daytime

12:00 1h

Obsession: Dark Desires

S4 · E1 · Texts, Lies, and Videotape

A man who bided his time to wreak a bloody revenge

The case of Todd Ray, who following the end of a brief relationship with Katie Call, began stalking her. He also hid video cameras and microphones in her home, biding his time to wreak a bloody revenge

13:00 1h

Evil Lives Here: Shadows of Death

S1 · E3 · Buried Dreams

The disappearance of a young pregnant woman

In 2007 in Bethany, Oklahoma, a young pregnant woman went missing. Police tried to retrace her last steps, and unearth more than the secrets she harboured

14:00 1h

Evil Lives Here: Shadows of Death

S1 · E4 · Truth Lies and Redemption

A 25-year-old cold case file that many saw as a tragic miscarriage of justice

In 1988, a man was released from jail after a judge deemed his murder confession false. For 25 years, a family's hope for justice faded as their suspected killer walked the streets. However, tenacious detective Christopher Lyons refused to let this cold case go

15:00 1h

Faking It: Tears of a Crime

S2 · E6 · Ian Stewart

The murder of author Helen Bailey

The murder of best-selling author Helen Bailey by her partner Ian Stewart, who had earlier helped volunteers in her search. The 51-year-old's body was eventually found dumped in a cesspit beneath the garage of her £1.5million home in Royston, Hertfordshire, alongside that of her dog in July 2016. She had been drugged and suffocated

16:00 1h

Obsession: Dark Desires

S4 · E2 · The Salon Stalker

A man's fascination with Idaho hairstylist Makaela Zabel-Gravatt

When Idaho hairstylist Makaela Zabel-Gravatt began cutting the hair of truck driver Christopher Wirfs, she had no way of knowing it was the start of a two-year nightmare that would end in a heart-stopping and disturbing climax

17:00 1h

Deadline: Crime with Tamron Hall

S4 · E1 · If I Can't Have You

How revelations led to the deterioration of a new relationship

How a graduate student was swept off her feet, only to find as the relationship progressed that revelations suggested nothing was quite what it appeared to be

Tonight's Highlights

18:00 1h

Deadline: Crime with Tamron Hall

S4 · E2 · Taunting Evil

A case in which a woman went missing after breaking up with her boyfriend

A case in which a woman broke up with her abusive boyfriend and moved in with a relative to make a fresh start. When she suddenly went missing, foul play was suspected

19:00 1h

Home Sweet Homicide

S1 · E5 · In the Name of the Father

The 2013 murder of respected basketball coach Jimmy McClain

The 2013 murder of respected basketball coach Jimmy McClain. With no signs of forced entry, police feared that Jimmy may have known the killer

20:00 1h

Home Sweet Homicide

S1 · E6 · Dangerous Liaisons

The case of Cody MacPherson

The case of Cody MacPherson, who having moved to New Jersey seeking work disappeared after a night of partying with a new group of friends. It soon became a homicide investigation

21:00 1h

Feuds Turned Fatal

S1 · E4 · Vengeance in Vegas

Two men come face to face over a woman

In Las Vegas, 2009, two men come face to face over a woman - three years of feuding ends in 13 fatal seconds. Decades on, neither family can forgive

22:00 1h

Portals to Hell

S2 · E19 · The Padre Hotel

Jack Osbourne and Heather Taddy investigate a hotel in California

Jack Osbourne and guest host Heather Taddy investigate a five-star hotel in Bakersfield, California, delving into the historic property's dark and deadly past

23:00 1h

Paranormal Lockdown UK

S1 · E1 · Shepton Mallet Prison

A visit to Shepton Mallet Prison

Nick Groff and Katrina Weidman spend 72 hours confined in one of the UK's most notorious haunted hotspots - Shepton Mallet Prison, Somerset, where the duo investigate the spirits 'locked' inside

Early Morning

Morning

Daytime

Tonight's Highlights

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