Allison Palmer, now in her fifties, fondly remembers summers at Aunt Maud's house in small-town Pennsylvania. She and her cousin Cameron were playmates there, until they grew up and went their separate ways.
As adults, they're brought together once again after Aunt Maud passes away. She's left her estate to Allison, Cameron, and their third cousin Simon. While Allison and Cameron prefer to keep the house intact, Simon wants to tear it down and sell the land to an underhanded developer. Allison hopes to find a way to compromise. But she doesn't expect to find her third cousin so alluring. Soon she's accepting dinner dates from Simon and even meets his mother.
Then, while exploring the attic in her aunt's home, Allison stumbles upon a stash of journals written in the 1920s. She pores over their intriguing pages, trying to determine the writer's identity. But when someone breaks into her hotel room, clearly looking for the old books, her curiosity turns to fear.
As tensions rise and Allison discovers more about the home's past, she begins to question the motives of everyone around her. No one is safe in this suspenseful murder mystery about family, love, and greed.