"If you watch Dateline, there's always an end. And that wasn't it." Watch for yourself tonight at 9/8c on a classic Dateline mystery with Josh Mankiewicz on NBC. | Dateline NBC

Josh always does his best… Tune in to NBC tonight at 10:30/9:30c to bring in the new year with Keith and Josh on "A Toast to 2025!" | Dateline NBC

She wasn’t answering her phone. Wasn’t responding to emails. Where was Karlyn? Her story tonight on a Dateline Weekend Mystery at 9/8c. | Dateline NBC

She gushed about her romance and her job. Life was good. Until… Watch tonight on a Dateline Weekend Mystery at 9/8c. | Dateline NBC

It was the scene of an obvious explosion. There was one confirmed fatality... Watch tonight at 9/8c on a classic 2-hour Dateline mystery. | Dateline NBC