Red Hook Road by Ayelet Waldman

In ten words or less: Couple is killed in crash after their wedding; families grieve.

Review: The death of a newlywed couple brings about changes in both their families as they cope with the tragic event.
Becca Copaken is the daughter of two New York professors who summer in Red Hook, Maine, where John Tetherly was raised by his cleaning lady mother. Becca's mother Iris planned the perfect wedding, right down to the masses of lupines in the church. And when Becca and John were running late to the reception, everyone thought it was because the photographer had to take just one more shot.
But their limo was hit head-on by another vehicle on a twisting rural road, and on the day their families expected to be celebrating a wedding, they were identifying bodies and planning funerals.

Why bother? Not a part of Waldman's popular mystery series, this novel would appeal to readers of Elizabeth Berg and Jacqueline Mitchard.