Investigation Discovery (ID), and TLC are partnering to simulcast PEOPLE MAGAZINE INVESTIGATES as a world premiere on Monday, November 7 at 9/8C exclusively on ID and TLC. The series debuts with the two-hour season premiere of the active investigation around THE LONG ISLAND SERIAL KILLER, featuring the reporting of People’s accomplished and award-winning true crime editorial team. Each week, this 10-part series delves into extraordinary tales of ordinary people thrust into the national spotlight and reveals the truth behind some of our country’s most infamous characters and iconic stories of true crime.

PEOPLE MAGAZINE INVESTIGATES takes viewers to the heart of the most controversial crimes as each hour-long episode focuses on stories ripped from the headlines, featuring archival footage, recreations, and interviews with key players in the investigations. From the Long Island Serial Killer case where new updates have been uncovered exclusively by People reporters; and the “Grim Sleeper,” where one of People’s journalists worked the case from the beginning, interviewing victims and families and connecting the killings that were occurring in Los Angeles; to the JonBenet murder mystery as it unfolds making headlines now approaching its 20th anniversary and the infamous MacDonald Family murders and more, People’s own trusted journalists seek to divulge new facts while revealing the shocking twists and unexpected resolutions that occurred while they were investigating each emotionally riveting case.

With exclusive interviews, new facts and emotional firsthand accounts by those closest to the investigation, PEOPLE MAGAZINE INVESTIGATES presents the following stories in this new series:

THE LONG ISLAND SERIAL KILLER

SPECIAL TWO-HOUR PREMIERE ON ID AND TLC

THE LOST GIRLS – Premieres Monday, November 7 at 9/8c

In 2010, a vivacious young escort, Shannan Gilbert, visits a client on the south shore of Long Island and vanishes under mysterious circumstances. Her disappearance leads police to the bodies of other victims buried along the shore. This discovery unleashes a wave of secrets, suspects, recriminations and conspiracy theories in the hunt for a serial killer who targets prostitutes, and who leaves behind a trail of grieving families determined to find justice.

NEW REVELATIONS – Premieres Monday, November 7 at 10/9c

The discovery of four women’s bodies in the marshlands off Gilgo Beach was just the beginning. Authorities now believe the Long Island Serial Killer may be responsible for up to seventeen deaths over a twenty-year period. But who is the Long Island Serial Killer? Police have no shortage of theories, including multiple killers, corrupt cops, and wealthy sadists who kill for pleasure – but still no suspect. Their investigation leads us into the most sordid corners of this quiet beach community, revealing shocking secrets and twisted relationships, as they race to identify and capture this prolific killer before he strikes again.

WHAT HAPPENED TO BABY LISA? – Premieres Monday, November 14 at 10/9c on ID

In 2011, Kansas City, Electrician Jeremy Irwin returns home after a late-night shift and discovers his house is unlocked and his 10-month-old daughter Lisa is missing from her crib. He wakes up his fiancée Debbie Bradley and their two young sons and the family frantically searches for Lisa. She is nowhere to be found. Police initially focus their investigation on neighbors and drifters, but in a stunning turnaround, accuse the family of being responsible for her disappearance. As the case gains national attention and the two sides battle it out in the media, reputations are ruined, relationships are broken and the fate of a small child is left hanging in the balance.

STRANGER THAN FICTION – Premieres Monday, November 21 at 10/9c on ID

In 1991, bubbly, kind-hearted Jackie Galloway disappears from her Sarasota, Florida home. Her strangled body is found the next day, bound in a ritualistic series of knots. Police investigate an elderly benefactor, a jealous boyfriend, and an angry landlord but come up empty. They fear the case may not be solved. Then a chance encounter with a prowler leads them to discover that the killer had a macabre obsession with death and was using a best-selling novel to teach himself how to rape and murder, with Jackie’s slaying as just one horrifying step in his education.

CABIN 28: HORROR IN THE WOODS – Premieres Monday, November 28 at 10/9c on ID

Sheila Sharp was only 14-years-old on April 11, 1981 when she walked into her family’s cabin after a sleepover and found the bound and mutilated bodies of her mother, Sue, 36, her brother, John, 15 and his friend Dana Wingate, 17. All had been fatally stabbed, beaten and strangled. Three years later, the body of Sheila’s missing 12-year-old sister was found. The horrific murder haunted the small community of Plumas County for years. Underneath the rural charm of the woodsy community was a vast list of suspects and illicit activity that stopped any headway from happening in the case. However, the discovery of some brand new evidence in the case along with technological developments have invigorated new life into this tragic case. After 35 years, could law enforcement finally get some answers in this grisly mass murder?

HOLLYWOOD HORROR STORY – Premieres Monday, December 5 at 10/9c on ID

It’s a normal bright sunny day in the Hollywood Hills of Los Angeles, until two women walking their dogs discover a severed head. The remains are identified as belonging to Hervey Medellin, a 66-year old retired flight clerk and art collector. When police investigate his life, they find links to suspects ranging from former lovers to drug cartels and a murderous porn star. In true L.A. style, the case becomes a movie-worthy mystery as detectives unravel the Case of the Hollywood Head.

IN THE NAME OF LOVE – Premieres Monday, December 12 at 10/9c on ID

In 1995, 16-year-old Adrianne Jones is found shot to death in Grand Prairie, Texas. A model student and athlete, there seems to be no reason for her death. Police investigate boyfriends, neighbors and local troublemakers, but don’t have any strong suspects. The case grows cold, until nine months later when a game of Truth-or-Dare leads to a startling confession and an over-achieving relationship that went murderously awry.

JONBENET: THE UNTOLD TRUTH – Premieres Monday, December 19 at 10/9c on ID

In one of the most famous unsolved cases in recent memory, six-year-old beauty queen JonBenet Ramsey of Boulder, Colorado is first reported kidnapped, only for her dead body to be found in her home hours later by her father. Amid allegations of political interference and police mismanagement, investigators attempt to find out if JonBenet was killed by an intruder or by someone in her own family.

THE GRIM SLEEPER – Premieres Monday, December 26 at 10/9c on ID

In 1988, a woman named Enietra Washington is shot and assaulted by a mysterious driver in South Central Los Angeles. She thinks it’s a random attack in a crime-ridden neighborhood, but little did she realize she escaped from a serial killer. The killer murders at least seven women during the 1980s before disappearing off the radar, only to re-emerge with another round of killings in the 2000s, earning him the moniker, “The Grim Sleeper.” After decades of investigation, police finally think they have the killer. But to prove their case, they must mount an undercover operation to collect DNA evidence, which leads to a shocking discovery.

THE DARKEST OF NIGHTS – Premieres Monday, January 2 at 10/9c on ID

Craig, Alaska is a tight-knit island town where everyone knows everyone. But on a cold February day in 2004, Lauri Waterman — a devoted mother, wife, churchgoer and special education aide — goes missing. When police discover her remains in a burned out van the next day, people realize no one truly knows their neighbors. Who could be responsible for this heinous crime? Lauri’s husband Doc and her daughter Rachelle don’t have a clue. Police have no leads until they question a former boyfriend of Rachelle who claims he knows who killed Lauri, and whose story exposes the dark secrets of a small town.

THE ACCUSED – Premieres Monday, January 9 at 10/9c on ID

In 1970, Jeffrey MacDonald, a Green Beret surgeon stationed at Fort Bragg, is the only survivor of a brutal home invasion that claims the lives of his wife and two young daughters. But authorities doubt his story of Charles Manson-inspired hippies and believe MacDonald is the true culprit. This is just the beginning of a nearly fifty year battle, full of twists and turns, between investigators determined to keep MacDonald behind bars, and a man determined to prove his innocence.

The People/Entertainment Weekly Network (PEN) will run after shows featuring People editors, show producers and story subjects following three episodes: LONG ISLAND MURDER MYSTERY (episode 1) CABIN 28: HORROR IN THE WOODS (episode 4) and THE ACCUSED (episode 10). Go to PEOPLE.com/PEN, or download the PEN app on Apple TV, Roku Players, Amazon Fire TV, Xumo, Chromecast, iOS and Android devices for the full after show.