When a mysterious illness strikes down Frank Hilley - the father of a prosperous family living in Anniston, Alabama - his widow Marie is forced to raise their two children alone. But then - the family starts receiving strange threats.

Whenever he's home on leave, devoted father and military helicopter pilot Bob Yates loves videotaping his wife Linda and their four children. But when they move to Spokane, WA - those videos take a sinister turn.

In rural Ohio, an intruder brutally guns down Jack and Linda Myers in their sleep. The only witness is their sleepy four-year-old grandson. Now, members of the Myers family are speaking out about the horror of what happened that night.

Secret double lives of the killers among us exposed.

Secret double lives of the killers among us exposed.

1996. A father in Texas seeks revenge for the savage dismemberment of his son. A girl in Mississippi desperately tries to escape the metal footlocker she has been imprisoned in... and a rookie detective is assigned a case that will define his career.

An 11-year-old makes a gruesome discovery in her own home while a woman is desperate to reach her mother has a haunting feeling something horrible has happened and one homicide detective is assigned a murder case that will rattle her to the core.

In 1989, in peaceful Dryden, New York, a Christmastime massacre claims an entire family. Just when it seems the horror has passed, terror visits Dryden again. With these events, a so-called "curse" will descend on Dryden for ten years.

Julie died of antifreeze poisoning, and the police are suspicious of her husband.

The police are trying to narrow down the suspect list for Bill McLaughlin's murder and wonder, was the dead man's son responsible?

24-year-old Vietnamese-American Thien Minh Ly is found stabbed on the Tustin High School tennis courts and police think his strange friend Craig is a suspect.

27-year-old Jarrod Davidson is shot dead outside his apartment in Santa Barbara, California. Next to him is a suspicious potted plant. He was in the middle of a nasty custody dispute but the DNA doesn't match his ex-wife. So who killed him?

After her husband dies suddenly, a woman becomes the relentless target of her overly flirtatious neighbor. When her brother moves in to protect her, he's put on a collision course with the neighbor that will only be resolved with bloodshed.

Get a sneak peek and watch original audio and video footage that was recorded during the neighbor disputes. The all-new series premieres Monday, April 14th at 10/9c. Only on Investigation Discovery.

Neighbors go to war when an older man obssesses over the boundary lines of his property and wont let his neighbors anywhere near it.

In the rolling hills of Lenoir, North Carolina, retired Vietnam veteran Roland Younce sells off a patch of his land to Tony Moore and his young family to build their forever home on. Unfortunately, things turn ugly.

In peaceful Alden, New York, Helena Sindrewicz and husband David Ward have built the house of their dreams right beside Sindrewicz’s childhood home. Her brother Andrew still lives in the family home where he tends their ailing mother, Anneliese. All is well between the neighboring siblings until their other brother, Raymond, returns after many years away and moves in with Sindrewicz. Old tensions and grudges erupt between the brothers, and things get ugly, threatening, even physical. When Sindrewicz finally decides to sell the family home out from under Andrew, he brings their civil war to a shocking, fiery conclusion.

Two neighboring Omaha mothers turn from friends to foes in a vicious spat. Allegations of harassment, vandalism, assault and even child neglect are filed, but without evidence the police can do very little to extinguish the hatred simmering betwe ...

An industrious woman and an ambitious man become neighbors when they buy adjoining houses. Both intend to restore the derelict homes to former glory, but when one of the renovations falls badly behind, it leads to conflict and a shocking murder.

A man explodes furiously on a neighbor who tried to let herself into his house at 1am, with a man, claiming she had sinister motives in mind. The confrontation soon turns ugly.