Piers Morgan enters Florida's maximum security Blackwater River Correctional Facility to confront Mark Riebe, a convicted killer who has since confessed multiple times to the abduction and murder of thirteen women along Florida's Gulf Coast.

At Missouri's Crossroads Correctional Facility, Piers Morgan comes face to face with Lorenzo Gilyard-the Kansas City Strangler, and sets out to discover what drove this soft-spoken, seemingly ordinary man to kill multiple times over seventeen years.

Two-and-a-half decades ago, a man from Milwaukee named Jeffrey Dahmer was tried and convicted of 17 gruesome murders that occurred between 1978 and 1991. Dahmer was convicted of luring young men into his home, where he then drugged, sexually violated, killed and finally consumed them. Investigative journalist Nancy Glass secured exclusive access and the first televised interview with the famous serial killer. "`Dahmer on Dahmer: A Serial Killer Speaks' catapults viewers into Jeffrey Dahmer's psyche, providing a unique look at the life of a serial killer that shook the nation," says Oxygen Media programming executive Rod Aissa.

Each episode of this true-crime reality series examines a different felon, usually a female, who has committed murder or attempted murder. The victim is usually the perpetrator's partner. The documentary-style series features interviews with friends and family members of the accused and victims, law-enforcement officials, attorneys and other people with first-hand knowledge of the cases.

This documentary series takes viewers inside prisons and jails across America and around the world, offering rarely obtained and comprehensive access into these locations. The show profiles the inmates and employees who work at these facilities, highlighting their day-to-day experiences and interactions within the confines of prison. By bringing audiences the real, raw stories of life behind bars, this program aims to provide a truly authentic and in-depth look inside the complex criminal justice system.

Is one of America's most prolific uncaught serial killers still alive, and will a new $50,000 reward finally help collar the sadistic criminal? Now known as the Golden State Killer and responsible for at least 12 murders in California, the man investigators have sought for 40 years may be linked to another series of unsolved crimes, raising a key to perhaps solving the case. This five-part docuseries is an in-depth look at the manhunt, patterns, escape methods and mind games of the killer. It also includes interviews with investigators, law enforcement and victims, who offer information to help solve the mystery of a man who has managed to escape justice for decades.

Cameras go behind the crumbling walls of San Quentin State Prison in California, where overcrowding and lack of modernization are blamed for an ever-increasing number of inmate attacks on guards. The facility, which has four cell blocks containing more than 800 prisoners each, also houses a number of death row inmates. As one guard bluntly explains, the attitude of many of the prisoners on death row is "You can only kill me once," so officers are on constant guard against attack.

The phrase "ball and chain" takes on a whole new meaning in "Love after Lockup." Couples meet their potential future spouses for the first time once the bars are removed from the relationship. The way is full of bumps -- and some strong emotions -- along its rocky road, but these inmates are tasting freedom for the first time in a long while. Join them as they leave their paper and pen behind and jump straight into dating, meeting the family and experiencing other first-time, nerve-wracking moments.

Exonoree and former football star Brian Banks teams up with former prosecutor Lori Coombs to uncover the truth behind controversial cases that may have led to wrongful convictions. In 2002, Brian Banks served more than five years behind bars for being falsely convicted of rape. Now, he works with Lori Coombs, who is a former criminal prosecutor with 20 years of experience. Together, this duo breaks down the criminal cases to the core. Join Banks and Coombs on an emotional and perplexing journey through different prisoners' lives.

Social media can be a good thing when used properly, allowing people to catch up with friends and family who don't live nearby. Things can go wrong, though, when it's not used the right way. This series shows extreme examples of the negative outcomes that can result from social media usage. Episodes tell the stories of cases in which social media activity had dangerous -- sometimes deadly -- consequences. Cinematic re-enactments, witness testimony and expert interviews are used to present the tales that begin with something as simple as an online post or tweet and end with violence. Cases include an online feud between friends that results in a physical altercation and a seemingly innocent online connection to leads to a homicide.

The behind-the-scenes series goes international, taking viewers behind bars in prisons in countries around the world. From an abandoned, underground execution chamber in Serbia where prisoners faced death by firing squad to a special room for conjugal visits in a Belgian facility, cameras hunt out the details of prisoner life in other countries.