The three mustaches return to Long Island to conclude their hunt for the Gilgo Beach Killer. After pulling over a dozen bodies from the sand, the Long Island Police Department were able connect at least 8 of the victims to the same culprit. Unfortunately, interdepartmental feuds and corrupt cops derailed the investigation before the killer could be tracked down. Now it's up to an expert criminologist named Dr Laura Pettler to dig through the evidence and uncover the identity of the culprit before he claims another victim.

The three mustaches grab their bathing suits and sunscreen for a relaxing trip to the beach. And there's no beach more suited for true crime enthusiasts than Gilgo Beach in Long Island. Between 2010 and 2011, nearly a dozen bodies were pulled from the sand, most of whom were young escorts from nearby towns. Early on it was clear to investigators that they were on the trail of a serial killer, and they would have to work fast to track down the killer before they struck again. Kick back, grab a tropical cocktail and join us for the first of our two-part series on the Gilgo Beach Killer.

The three mustaches prepare for their upcoming move by taking a short trip to their soon-to-be home, North Carolina. In 1986, a man named Harold Gentry was brutally gunned down in what appeared to be a botched home invasion. The murder remained unsolved until 2006 when a forensic criminologist named Dr Laura Pettler discovered that Harold's wife, Betty, had a few skeletons in her closet. Specifically, the skeletons of four dead ex-husbands, all of whom died from a gunshot wound under mysterious circumstances. As the old saying goes, "two times is a coincidence, three times is a pattern".

The three mustaches are joined by Ben and Sarah Lambert from the only Michelin starred barbecue restaurant in the world. Why are there professional chefs on the show? Because it's time to cook some killer food from a serial killer's cook book! Between 1982 and 1988, Dorothea ran a boarding house for the elderly and infirm in Sacramento, California. Unfortunately, her charitable endeavor soon came under scrutiny due to her residents mysteriously dropping dead. So, sit back and enjoy the story as Ben and Sarah prepare a few of Dorothea's classic recipes from her book, 'Cooking with a Serial Killer'.

The three mustaches convene once again to examine all of the potential culprits of the infamous Alphabet Murders. Many suspects have been investigated over the past few decades, but so far no arrests have been made. Today, the true crime trio will utilize their vast knowledge of the criminal mind to finally identify the monster responsible for the brutal attacks on three young girls in Rochester, New York. Could they be wrong? Sure. But... what if they're not?

The three mustaches hop in their time machine and travel back to 1971 to tackle a case out of Rochester, New York. When the bodies of young girls began turning up along rural roads in upstate New York, police soon noticed an eerie similarity in their murders. Each girl had a first and last name that started with the same letter. Even more strange, their bodies were found in towns that also started with the same first letter as the victim's name. Was this just a coincidence, or the morbid calling card of a serial killer? To learn the answer to that question join us for this two part series!

The three mustaches take a trip to Kentucky, and it's not for the fried chicken. In 1988, just outside of Louisville, 36-year-old Brenda Schaefer went missing after a dinner date with her soon-to-be ex-fiancé, Mel Ignatow. Following her disappearance, all eyes were on her abusive former lover, but Mel turned out to be a slippery fella to catch -- likely due to all lube he kept on hand. Their tragic story shows exactly what happens with a chilly girl collides with a chili guy. Stock up on Pepto-Bismol because this episode is spicy.

The three mustaches stock up on hairspray for a trip into the sordid underbelly of professional hairstylists. After spending 30 years clawing his way to the top of his industry, Fabio Sementilli was living the dream. He had a beautiful wife, a beautiful home, and a loving family that adored him. But that all came crashing down when the beloved celebrity hairdresser was brutally murdered in what appeared to be a botched home invasion. But, was he targeted at random, or did the intruders have more on their minds than making a quick buck?