Ethan Pollack thinks of Blythe Cove Manor as his second home and Blythe is second mother. A career navy officer, Ethan never returns to Martha's Vineyard without a gift for Blythe. However, he didn't know there was anything unusual about the obsidian cat he bought in Japan. Then he sees a woman in his room who isn't there.

Jenna Taylor plans, prepares, compares her options before making decisions, but one Memorial Day Weekend she uncharacteristically takes a vacation to Martha's Vineyard. The island is flooded with uniformed sailors. Meeting Ethan on the stairs of Blythe Cove Manor, she has no idea why she feels she already knows him. Neither of them understands that there is something more at work that will tie them together. Can they unravel it? And do they really want to?