After crossing the Mexican border from Brownsville, Texas, a student out on spring break goes missing; the investigation leads US officials to a cult known for practicing witchcraft led by a former male model and a high school cheerleader.

After hearing about a religious cult stockpiling weapons on an isolated farm outside Rulo, Nebraska, FBI agents cultivate an informant from inside the group who details the torture and murder being ordered by the group's diabolical leader.

Police in Kirtland, Ohio receive a tip about a family of five killed and buried in a barn belonging to a local cult; as they question the cult, investigators learn even more sinister details of power and manipulation leading up to the murders.

Jennifer Wendorf comes home to find her parents brutally murdered and sister missing; searching for answers, investigators discover a complicated web tracing back to a cult of self-proclaimed vampires.

Investigation Discovery joins forces with reporters from People magazine to tell stories of the destructive effects cults have on members and their families. Lured by false promises, everyday people are caught up in terrifying webs of abuse, deception and manipulation, building to pivotal moments when blind worship leads to violence and even death. Each hourlong episode offers an in-depth exploration of a twisted American cult, from world-famous Jonestown to smaller but equally disturbing sects of depravity. People's journalists interview survivors who managed to escape a cult, exposing stories of power-crazed leaders who use mind control, sex, and daily rituals to dominate followers.

In 1969, Tony Alamo and his wife, Susan, founded the Alamo Christian Foundation in Los Angeles, beginning careers as born-again, fire-and-brimstone televangelists. Attracting hippies and other discontented youth, the foundation soon evolved into a cult that is said to still be in operation. By avoiding law enforcement and maintaining a strict code of silence among followers, the Alamos gained immense power, becoming millionaires on the backs of their congregation. This four-episode docuseries shines a light on the Alamo empire through rarely-seen archival footage, including an exclusive videotaped deposition with Alamo himself. It also features interviews with the FBI agent who took Alamo down as well as cult survivors who have never previously shared their stories.

There are manipulators in the midst, scheming right under everyone's noses. Even with people trusted the most, there may be something sinister lying beneath the surface -- a plot set in motion by someone close with a deadly motive. This true-crime series tells stories of actual murders committed not by strangers but by someone the victim knew, someone hiding in plain sight, or someone leading a double life. These wolves in sheep's clothing use deception as a weapon to try to get away with murder.

"Accident, Murder, or Suicide" investigates the deaths that are just a little bit too mysterious. It explores the unbelievable true stories in this hourlong program. Each episode retraces the investigation from the start to the end. Investigators take viewers through the twists, turns, and unexpected surprises as they dissect the red flags, show evidence, and point out the strange behavior that puts everything into question.

Raw, unbridled and chilling depictions of human desires surface in "In Ice Cold Blood." True crime is depicted at another level as Ice-T takes viewers straight into the stories. Money, sex, lust, and greed run rampant with very real consequences. Family members, friends and detectives recount each case -- a missing military veteran, a student murdered in a crime of passion, and secret payouts are only some of the cases. These stories are told through re-enactments, in-depth interviews and archived footage.

The first three days after somebody is abducted are extremely important. Statistically, the chances of finding the abductee alive diminish significantly after the first 72 hours. "Three Days to Live" chronicles kidnapping cases, using re-creations and first-hand testimony from authorities and loved ones to illustrate what went on -- from the crucial periods early on in the cases, which all feature females who were taken, through the twists and turns the kidnappings took before reaching their conclusions. Journalist SuChin Pak narrates the hourlong series.