Dateline: Unforgettable

Combines four to five segments of dramatic re-enactments, interviews and updates of real human and paranormal mysteries. An audience interactive call-to-action request allowed viewers to call in with tips to help solve the cases.

Following a raft of shootings in an English market town, the crimes are retold in a nonlinear narrative structure through the eyes of a journalist and the tragedies' victims.

When Lori Vallow's kids vanished, the search for them unearthed a trail of suspicious deaths, a new husband who shared her doomsday views — and murder.

The story of the rise and fall of the Baltimore Police Department's Gun Trace Task Force — and the corruption and moral collapse that befell an American city in which the policies of drug prohibition and mass arrest were championed at the expense of actual police work.

Within the walls of an interrogation room, London investigators question suspects accused of grievous crimes until the truth comes to light.