The sting operation to catch a south Florida woman in a murder-for-hire plot is filmed for a reality-TV series; interviews with the woman's lawyer, and the would-be victim, her ex-husband.

Marni Yang, a single mother of three who is serving a double life sentence in the murder of football player Shaun Gayle's pregnant girlfriend, talks about the case and her petition for a new trial.

When a woman secretly records her husband's affair, she snaps and kills his girlfriend and herself.

A man who was convicted of killing his pregnant wife is set free after spending less than eight years in prison.

New Hampshire teen Abby Hernandez talks about her 2013 abduction, captivity and abuse; also included is an interview with Lauren Munday, the woman who aided Hernandez's release.

Anchored by Lester Holt, "Dateline" is NBC's signature newsmagazine, bringing viewers storytelling at its best by putting the pieces together to present the full picture of real-life events. NBC News correspondents cover compelling stories and issues of the day, ranging from mystery and crime to in-depth investigations and breaking-news events.

"Dateline" has been a staple of the newsmagazine genre since premiering in 1992. Given how long it's been on the air, the show has an extensive archive of in-depth news stories and investigative journalism. This syndicated version offers viewers another chance to watch some of the show's previous content, serving up real-life mysteries and in-depth investigations from the show's 20-plus years on the air. Cases involving murders and missing people are frequent topics on the series that has won multiple Emmys in the news and documentary category.

The oldest and most-watched newsmagazine on television gets the real story on America's most prevalent issues. CBS News correspondents contribute segments to each hourlong episode. Topics range from hard news coverage to politics, lifestyle, pop culture, business, health, and science. The correspondents and contributors include Sharyn Alfonsi, Anderson Cooper, Steve Kroft, Lara Logan, Norah O'Donnell, Scott Pelley, Charlie Rose, Lesley Stahl, Jon Wertheim, Oprah Winfrey and Bill Whitaker.