Heidi has had an unusual upbringing. One day her mother was found crying at her neighbor's doorstep with her baby (Heidi). Her mother had a "bum brain" so their neighbor Bernadette opened her home and heart to them. One day Heidi finds an undeveloped roll of film that holds clues to her mother's past and goes looking for answers. 
 This is a lovely book. Emotional and full of warmth.