TV Guide Investigation Discovery

An unhappy, young, married mother takes to Tinder under a pseudonym and embarks on a steamy affair, but then her identity surfaces and her lies are exposed.

A new girl arrives in town and it causes heads to turn, including the local heartthrob and together they embark on an affair that leads to mayhem and murder.

A love triangle unfolds at a medieval historical reenactment group and with weddings, miscarriages and broken promises, things soon turn messy.

Dru Sjodin is a student who is missing after her shift at Victoria's Secret; police use surveillance camera footage as they piece together her last movements.

A college student named Katie Poirier goes missing while she is working at a gas station; the security footage, does give an answer to what happened.

An out-of-control 18-wheeler leads more than 20 officers on a 2-hour chase in Texas; a man goes on the run after allegedly stabbing a doctor in Florida.

A chance encounter escalates from death threats in a parking lot to a demolition derby on the interstate; a 100-mile chase ends in a $250,000 drug bust.

A Georgia driver leads deputies on a 150-mph chase before a high-speed PIT brings the pursuit to a fiery end; a thief leads deputies down dusty roads in Texas.

In 1972, police find a woman fatally stabbed in her room but the killer seemingly vanishes and the case goes cold, until a new investigative technique emerges.

The former basketball player Lorenzen Wright was brutally murdered by an unknown assailant after being shot 11 times and left in a wooded area in July 2010.

In 1975, a man abducts three young girls, stabbing them and leaving them for dead in a field and the attacker becomes known as the Indiana Slasher.

When Oscar winning Cambodian doctor-turned-actor Haing Ngor was shot dead outside his home in downtown Los Angeles, in 1996, the LAPD try to uncover the truth.

In 2021, police find a retired couple stabbed in their home on the New Jersey shore and witness a mysterious figure coming and going on security footage.

When 56-year-old Andy McGuffee turns up murdered in his burnt-out home, the investigation looks to surveillance footage to close in on their suspects.

When 71-year-old Cindy Mudd goes missing, the Kanawha County Sheriff's Office turns to CCTV to retrace her movements and follow a trail of surveillance footage.

When Laura Pietscher, a 28-year-old resident of Sebring, Fla., turns up dead in a dumpster 90 miles away, detectives turn to CCTV footage to find her murderer.

When police found Corey Lee Hughes dying on the floor, they turned to security video to find his attacker, then a neighbor's camera captured an SUV leaving.

A man guns down Conbino Crasto during a gas station robbery in Texas, and surveillance video sends police on a hunt for three masked suspects.

In the aftermath of the brutal slaying of a homeless man, James Tony Wise, Portland PD, turns to the footage from surveillance cameras to find his killer.

In Oklahoma, a suspected drug dealer leads police on a perilous pursuit of a busy interstate. In Michigan, an officer comes under fire from a masked gunman.

A college student vanishes during a morning run in Amherst, sending fear through the community; police uncover a pattern of attacks on young women.

After the murder of 28-year-old Kiara Livingston, Aurora, Colo., police uncover inconsistent witness accounts, a mysterious lover named Trey, a buried truth.

Detectives investigate the murder of 20-year-old father Joseph Douglas, shot execution style in Texas, which leads stall and rumors swirl.

A college student vanishes during a morning run in Amherst, sending fear through the community; police uncover a pattern of attacks on young women.

After the murder of 28-year-old Kiara Livingston, Aurora, Colo., police uncover inconsistent witness accounts, a mysterious lover named Trey, a buried truth.

Detectives investigate the murder of 20-year-old father Joseph Douglas, shot execution style in Texas, which leads stall and rumors swirl.

In Oklahoma, a suspected drug dealer leads police on a perilous pursuit of a busy interstate. In Michigan, an officer comes under fire from a masked gunman.

When Rachael Anderson disappeared in 2010, in Moscow, Idaho, police investigate her estranged husband, but her body has never been found and 2 men are in jail.

After college co-ed Jessica O'Grady went missing one night, another woman disappears a week earlier and causes the locals to wonder if a killer is on the loose.