Donnie Wahlberg isn’t a cop, but he’s played one on TV. In real life, he’s a huge fan of true crime, and he’s now the host of HLN’s new original series “Very Scary People.”

Starting Sunday, March 17, “Very Scary People” will dust off the stories of some of the evilest criminals in history in new, bone-chilling detail. The six-episode HLN Original Series chronicles the twisted lives of some of the most frightening, diabolical characters in recent history. Each two-hour episode traces the heinous, criminal acts of these elusive miscreants and the eventual road to justice.

“Very Scary People” is an HLN Original Series and part of the network’s internally developed programming dedicated to true crime, mysteries, and investigations. Nancy Duffy, vice president of Program Development for CNN, is the executive producer of the series.

“Very Scary People” will also stream live for subscribers via CNNgo (at CNN.com/go and via CNNgo apps for Apple TV, Roku, Amazon Fire, Samsung Smart TV and Android TV) and on the CNN mobile apps for iOS and Android.

Ahead of the linear premiere, the series premiere episode John Wayne Gacy: “Evil Secret” will be available on demand to subscribers via cable/satellite systems, CNNgo platforms and CNN mobile apps. The rest of the series episodes will be available on demand the day after their broadcast premiere via cable/satellite systems, CNNgo platforms and CNN mobile apps.

“Very Scary People” premieres March 17 at 9 p.m. ET/PT on HLN.