The Couple Next Door by Shari Lapena
A domestic suspense debut about a young couple and their apparently friendly neighbors a twisty, rollercoaster ride of lies, betrayal, and the secrets between husbands and wives.Anne and Marco Conti seem to have it all a loving relationship, a wonderful home, and their beautiful baby, Cora. But one night, when they are at a dinner party next door, a terrible crime is committed. Suspicion immediately lands on the parents. But the truth is a much more complicated story.