Bestselling crime author Marian Lane is surrounded by adoring readers when she learns that her husband Dane is dead.

Marian returns home in shock to discover a stranger on her doorstep. A woman who not only claims she's Marian's biggest fan but says that she comforted Dane in his final moments.

At first, this woman, Mary, is a source of comfort. Until she admits Dane confessed a secret. One she can't quite remember; one Marian is desperate to learn.

But Mary is a storyteller too. And though Marian knows every twist in the genre, she won't see this one coming . . .