It is 1950 and, after a disastrous honeymoon night, Ariah Erskine's young husband throws himself into the roaring waters of Niagara Falls. Ariah, "the Widow Bride of the Falls," begins a relentless seven-day vigil in the mist, waiting for his body to be found. At her side is confirmed bachelor and pillar of the community Dirk Burnaby, who is unexpectedly drawn to this plain, strange woman. What follows is a passionate love affair, marriage, and family—a seemingly perfect existence. But the tragedy by which they were thrown together begins to shadow them, damaging their idyll with distrust, greed, and even murder.