Shortly after the funeral, a young man, Finn O'Brien, arrives at the cottage with an old photograph. Finn believes the boys in the photo are a clue to his father's identity. Mags can sympathize with him, and because she often helped her genealogist grandmother uncover skeletons in people's closets, including herself, she agrees to assist Finn.
But searching for Finn's father stirs up trouble. Finn is in a near-fatal car crash that wasn't an accident. So Mags and her childhood friend Biddy McCarthy investigate why someone wants to prevent Finn from finding his father. Questioning the quirky locals proves a wee bit difficult as several of the suspects were victims of Mags and Biddy's childhood shenanigans.
It might take a fake Irish wake to reveal Finn's father and the would-be murderer.
But what if the two turn out to be the same person?