Twenty years ago, Sharon's identical twin vanished. Now, a mysterious young woman enters Sharon's life, claiming to be her sister's daughter and bringing with her a revelation that will upend Sharon's whole life.

Meredith runs a Lamaze business and hires Eve, who becomes her best friend. When Eve is stalked, Meredith is determined to help. As she investigates, Meredith discovers Eve might be hiding a dark secret.