In the Pacific Northwest, a family appears to have it all until a stash of guns and a secret video reveal the face of a diabolical killer.

In Honesdale, Pa., a family copes with teen pregnancy, addiction and heartache, then someone from the past stirs the pot to bring about a murder.

In Nebraska, a once-happy family is frayed by anger and jealousy when an illicit affair comes to light, and a tattoo seals the fate of more than one member of this family.

In southern Oregon, a weekend in the woods turns into a nightmare for the family of a local businessman; over the weekend, open marriages and forbidden relationships lead to a watery grave for one of the campers.

In Bigfork, Mo., two random-appearing murders turn out to be connected in a shocking way.

A frantic 911 caller informs police he's found a family member dead; at first, it looks like a case of suicide, but a deeper dig reveals a secret world of sex tapes, broken promises and unfathomable motives.

A homeowner is found dead in a driveway, riddled with bullets; the claims of a family member who allegedly witnessed the brutal attack raise more questions than answers.

In Ore City, Texas, firefighters extinguish a burning truck to reveal the charred remains of a human corpse inside; it soon becomes apparent that this fiery incident was no accident.

In Little Washington, N.C., old money combines with a get-rich-quick attitude to put a family in jeopardy.

In the Blue Ridge Mountains of North Carolina, community pillars are pulled into a quagmire of affairs, abuse and embezzlement leading to murder.

In Logan, Ohio, investigators receive word someone has been kidnapped from their job at the bank in a car that resembles a police cruiser; eventually, detectives discover a very personal connection between the victim and the kidnappers.

Affairs, lies and explosive arguments lead to an early grave for the member of a Detroit family.

In Pueblo, Colo., police are called to a horrific scene where a fire reveals the charred remains of a body; as detectives work to track down the killer, their investigation uncovers cracks in the foundation of a large, multi-generational family.

While performing a welfare check, police stumble across a brutalized body hidden inside a garden shed; while this is a shocking find, another family member had perished on this same property just two days prior to the welfare check.

Lottery winner Jeffery Dampier is living the American dream until his winning streak ends in murder.

The Sanchez family seems to have it all until one member is found dead.

The McNeil family lives a happy life until a member of their family is murdered and a relative's conspiracy surfaces.

NYPD detectives discover a bullet-pierced body stuffed into the trunk of a car and quickly find themselves drawn into a dark tale of brotherhood, backstabbing and betrayal.

While carrying out a welfare check on Thanksgiving Day, police discover a triple homicide; to unmask the killer, detectives must uncover a victim's secrets and examine a hidden world of disinheritance, rage and dark accusations.

Responding to a home invasion, police find one family member has been killed while another has been left in critical condition; it doesn't take long for detectives to start suspecting the culprit could be someone very close to home.

Confronted with a grisly Valentine's Day surprise, police find a bullet-riddled body in a family's home; the usual suspects have alibis, forcing detectives to follow a trail of secrets, manipulation and betrayal to arrive at the truth.

From blushing brides turned cold-blooded killers to smitten grooms with shocking dark sides, "Fatal Vows" examines the criminal psychology behind deadly divorces. Guiding viewers through actual stories of love gone wrong are psychotherapist Stacy Kaiser and forensic/clinical psychologist Dr. Brian Russell, who examine each couple to better understand how the marriage turned from flawed to fatal. Stylized re-enactments are supported by interviews with family, friends, law enforcement, and potential victims of the crime, while Kaiser and Dr. Russell provide analysis on unions that break down until divorce and murder collide.

Actual murder cases from the 1950s and '60s get sleek, cinematic treatment in this series, transporting viewers back to a pre-forensics era when sometimes it was more about how suspects looked than what they did that determined guilt. Narrative by a fictional bystander -- who "knew" the victim -- drives the hourlong episodes, while reporters who covered the case explain how the events impacted society. Artfully crafted re-creations play out like period thrillers, staying true to fashions and styles, while spotlighting cultural taboos and social norms surrounding each case.

Veteran journalist Paula Zahn steps out of the studio and into the field to unravel criminal investigations, tracking the drama of each story by featuring the opinions of those closest to the case, including law enforcement officials, the families of the victims and the incarcerated, lawyers from both sides, and first-time TV interviews with convicted murderers.

There's a reason murder investigations don't begin with preconceived notions. Sometimes those least expected to be capable of committing such dark deeds -- respected role models and trusted members of the community -- can have a sinister side. "Unusual Suspects" documents baffling, challenging investigations, actual cases that were anything but cut and dry. Episodes feature in-depth interviews with leading law enforcement personnel combined with stylized re-enactments, illustrating how illusive offenders evaded capture for years before being undone by persistent police work.

Former FBI criminal profiler Candice DeLong interviews real femmes fatales whose stories have been featured on ID's "Deadly Women." In each episode, DeLong goes behind prison walls to reveal the candid, sometimes shocking story of love and betrayal from the point of view of the woman herself. DeLong's decorated FBI career included tracking terrorists, working under cover as a gangster's moll and hunting for the infamous Unabomber, and it earned her the reputation as the real-life Clarice Starling, the FBI agent at the center of "Silence of the Lambs" and "Hannibal."