This novel follows three characters: Lorraine, Lexy, and Ella.

Lorraine:

Not long ago, Lorraine lost her husband to another woman. She thought that was the worst thing that could happen to her, but soon she realizes it's just the beginning of an everlasting nightmare.

Lexy:

Lexy, an au pair from London, moves to Seattle to help Lorraine with her infant son. But she didn't come for the child...she came for something else.

Ella:

When Ella receives a call from her sister, Lorraine, who begs her to leave San Diego to spend time with her, she decides to take a few days off from work to visit her. Frightened to see how much Lorraine has weakened since her diagnosis eight months ago, she packs a bag and heads to Seattle with a foreboding feeling that this might be the last time she sees Lorraine.

But on her way to the airport, she learns that something shocking has happened since she last spoke with Lorraine and now. To make matters worse, once Ella arrives in Seattle, Lorraine's story keeps changing, making Ella question how reliable her sister really is.

Soon Ella is entangled in a mysterious investigation, and more so, in the lives of everyone involved. She realizes not only that she won't go home anytime soon but also that she'll never look at others the same way she did before.