Jo wakes in a pool of blood at the bottom of her stairs, having forgotten the last year. She struggles to piece her life together, and fears her family are keeping secrets.

Jo visits a head injury support group and makes a connection. A mystery visitor reveals extraordinary news.

Should Jo tell the police what she's remembered? Sash has exciting news, but Jo is preoccupied by memories of the stranger.

Jo is haunted by demons of the past, and her hallucinations worsen. As shocking truths emerge, she questions how she fell.

Jo's 'missing' year is played out through Rob's eyes, revealing events she can't remember - and secrets she never knew.

As childhood traumas resurface, Jo finally learns the appalling truth about what happened the night she fell.