Just One Look

An ordinary snapshot causes a mother's world to unravel in an instant. After picking up her two young children from school, Grace Lawson looks through a newly developed set of photographs. She finds an odd one in the pack: a mysterious picture from perhaps twenty years ago, showing four strangers she can't identify. But there is one face she recognizes-that of her husband, from before she knew him.

When her husband sees the photo that night, he leaves their home and drives off without explan...