Fear Thy Neighbor

When the Sienna family moves in next door to the Duckett family, their two sons Mark and Mitchell initially strike up a friendship over a shared love of cars and cigarettes. But as time goes on, Mark begins to encroach on the generosity of the Sienna family and his increasingly erratic and bizarre behavior threatens their sense of safety. As Mark’s mental health begins to unravel, he becomes plagued with delusions and paranoia. When law enforcement becomes involves, his already fragile mental state is exacerbated, resulting in a break-in and midnight shooting that will rock a tight-knit community to its core.

When a Baptist pastor moves in next-door to a free-spirited older woman in suburban Las Vegas, you’d expect him to live piously and love his neighbor. But unfortunately, the two couldn’t be more different and as they struggle to wrap their heads around differing morals and lifestyles, tensions soar. Soon, back and forth allegations between them swirl as each accuses the other of noise violations, intimidation, spying, and drug use. When the mutual agitation reaches biblical proportions, will they do unto others what thy would have done to them or will retribution be wrought? 

A family lends a friend in need a place to stay but kicks her out after a series of disagreements. Offended by the perceived offence, she refuses to move away and instead buys the house directly across the street from the family. From there, a years-long dispute kicks into high gear that will see rumors swirl among townsfolk, cyber bullying, topless lawnmower riding and heated public arguments. As the bitter rivalry swells, the result is a hail of bullets, shocking murder, and a community left forever changed.

For years, a married couple rules a suburban street with their obnoxious behavior and taunting of fellow neighbors. Their reign of the otherwise quiet street is challenged by the arrival of a new neighbor who won’t stand for their digressions. As years of tensions fester between the two parties and insults are hurled, one neighbor is pushed over the edge. The result is an all-out brawl over a snow shoveling dispute that ends with a shocking double-execution.

What would you do if the person you feared most… was living right next door? On Fear Thy Neighbor, we dive deep into stranger than fiction stories about neighbors gone wrong. We’ll hear these true stories as told by the victims, their families and their neighbors... featuring real 911 calls and surveillance archives. Tune in to hear what happens when simple issues turns into living nightmares with horrific and often fatal consequences.

When young Sarah Rairdon vanishes in Underwood, Minnesota, the whole town launches an exhaustive search for her. The discovery of her body leads to terrifying fears of child abductions and reveals a tragic secret.For even more Deadliest Decade, head to discovery+. Go to discoveryplus.com/deadliestdecade to start your 7-day free trial. Terms apply.