Determined to prove what she saw was real, Anna snoops at the scene of the crime. She joins a support group but winds up right back where she started.

Anna's online sleuthing unearths a close connection to Neil — and one tragedy after another. During a trip to a lighthouse, Anna's suspicions run wild.

A paranoid stranger appears at Anna's door with threats and the unsettling truth about Lisa. After the cops drop in, Anna unwinds in more ways than one.

When a night of passion leads to an arrest the morning after, Anna tries to get on with her life. But just when things feel normal, a new clue is found.

Detective Lane puts pressure on Anna in the interrogation room, but Anna maintains her innocence. Back at home, a dark secret lies in the attic.

As a storm rages on, Anna pushes past her fear and ends up fighting for her life. Later, déjà vu kicks in when Anna boards a flight to New York.