After receiving an unexpected inheritance from her grandfather, Mercy and her twin sister Lizzie are now the proud owners of a charming antique bookshop in the tiny Irish village of Shamrock Cove. But before they can take in the beautiful view of the sea, one of their neighbors drops dead!
Mercy finds the Judge, a well-respected man who lives next door, dying on his own doorstep. She rushes to help, but with his final words, he accuses Mercy of murder! Most of their new neighbors hear his words and, with suspicion pointing at Mercy, she decides to investigate the case to clear her name.
Searching amongst the Judge’s old books, Mercy uncovers letters proving several of the townsfolk had reason to dislike the older man—but was it the local pub landlord, the kindly cook or neighborly knitter who killed him?
Then Mercy’s chief suspect turns up dead and she receives a threatening note, typed on paper from her own bookstore… Ireland was supposed to be a fresh start for Mercy and Lizzie, but dead bodies keep turning up.