Jon Talbot is a history professor who makes sense of the past by examining facts. He also knows how to speculate about the what-ifs. Jon’s doing both following the death of his wife, Pax. Driving home late from a volunteer assignment, she plunged off a mountain highway and died. The police find nothing suspicious about the facts: a deer in the road, a blown tire, a broken neck. But the what-ifs are leading Jon down a twisting trail of secrets. After five years of marriage, he is finally getting to know his wife.