Documentary week begins.

It's time for Full Frame again, three plus days of film and other indulgences. And what better way to kick off the week than by directing you to the Times and a week long mystery, told in installments by Errol Morris.

The series begins in Gettyburg, where a Union soldier dies alone, gripping this picture of three young children. The picture is found and a search is made for the identity of the dead father.

After newspaper articles appear throughout the northeast, a young mother claims the soldier as her own husband, missing since the battle. End of Part 1.

This is surely not the somber end of the tale. I suspect skullduggery swims beneath the surface because it's only Monday, and Errol Morris is not one to be drawn to simple stories.

Mr. Morris is the Oscar-winning filmmaker who gave us "The Fog of War: Eleven Lessons From the Life of Robert S. McNamara" as well as "Gates of Heaven," "The Thin Blue Line," "Fast, Cheap, and Out of Control," "A Brief History of Time" and "Standard Operating Procedure."

(This story also serves as a reminder to label your pictures while you can. Too often we look through a family album only to ask, "Who the hell is that guy?" And sadly, everyone who could have told us is gone.)