The Playboy Murders

From roots in the Deep South to the slums of New Jersey, "Who Do You Think You Are?" follows the journeys of some of the most well-known names in American popular culture. Watch as celebrities discover unknown details about themselves and their families while researching their ancestry with the help of historians and genealogical experts.

High-stakes exploits turn deadly — and shake a global church to its core — in this extraordinary true crime story.

True stories of Finnish criminal acts. Most of the stories have been previously published in the Nordic Police Stories book series.

Heart-wrenching, personal stories of unsolved missing cases and unexplained deaths that continue to baffle investigators and horrify those left behind. Each mystery is brought to life by unravelling the evidence, compelling viewers to hunt for answers as police continue to seek the public's help.

Brazilian TV personality and politician Wallace Souza faces accusations of masterminding the violent crimes he reported on and rallied against.

Working for nearly three decades with the Charlotte (N.C.) Police Department, Detective Gary McFadden has developed unorthodox methods that have helped him solve more than 700 homicide cases. He has a 90-percent success rate with the investigations he pursues. "I Am Homicide" shows how Detective McFadden uses his street smarts to work the neighborhood networks and gather critical information for leads, at times risking his life by trusting the streets he calls home.

The story of how the lottery invented to finance a zoo was incorporated by Rio de Janeiro's popular culture and, in the hands of organized gangsters, transformed itself into an immense crime empire.

NBC News correspondents Keith Morrison, Josh Mankiewicz, Stephanie Gosk and Andrea Canning examine the final day of a victim’s life – the split-second decisions and pivotal moments that made the difference between life and death. Detectives retrace those crucial hours looking for clues to solve the mystery.

From Executive Producer Dick Wolf, this true crime investigative series follows veteran prosecutor Kelly Siegler, and her rotating team of seasoned detectives, as they travel to small towns across the country and help local law-enforcement agencies dig into unsolved homicide cases that have lingered for years without answers or justice for the victims due to lack of funding and proper forensic technology.

Sordid tales of love triangles turn into mysterious whodunits, when one of three entwined in a fatal affair winds up dead. In this risky game of illicit love and secret sex, who will end up paying the ultimate price?

Marina

A series that dives into the dark world of contract killings, showcasing some of the most fascinating murder for hire cases ever caught on tape.

Geneviève Guérard meets fans who share their love for all kinds of dance styles and the communities that gave birth to them. Each episode is an opportunity to learn the rhythms, steps and artistry of a new dance, and its history, as well as its social and cultural impact.

Deep in the woods of New Hampshire, police find barrels with the remains of mutilated victims. The hunt for a serial killer stretches to California as detectives unravel a tangled web of abuse and murder.

In 1990, two men dressed as cops con their way into a Boston museum and steal a fortune in art. Take a deep dive into this daring and notorious crime.

Questions persist about the last night of Mario Biondo, the husband of Spanish TV host Raquel Sánchez Silva. This true-crime series uncovers new details.

These chilling stories of murder hit terrifyingly close to home -- each a real-life tale about the last thing anyone wants to find in their basement, a dead body. Every episode will make one think twice before ever stepping foot in the basement again.

Dive into unhinged murder cases in which investigators uncover and expose the dark world of cults that kill. The series explores how power and manipulation can lead to extreme actions.

New interviews and an up-to-date analysis of evidence shed light on the 1992 murders of three girls in Spain and their profound impact on the nation.

True-crime stories about murders that take place among close-knit groups of people, including coworkers, neighbors and community members.