Summer in Nantucket is wedding season with brides racing down Main Street as common as the sun setting at Madaket Beach. The upcoming Otis-Winbury wedding will be lavish at an oceanfront estate thanks to the groom's wealthy parents. However, tragedy strikes just hours before the ceremony when a body is found in Nantucket Harbor, turning the wedding party into suspects. Chief of Police Ed Kapenash must interview the bride, groom, and even his own family members as he delves deeper into uncovering the truth. As he investigates further, Kapenash realizes that every wedding is a minefield, with no couple being without secrets.
The rehearsal dinner at the Winbury estate on Nantucket island gets underway,...