It's 1943 and Peggy Reilly is at her best when the troubles of war come knocking at the door of Beach View Boarding House - especially when it concerns her younger sister, Doreen. Doreen is divorced from Eddie, but his letters have taken on a more threatening tone of late. When Doreen barely survives a traumatic disaster whilst on leave in London, she returns home to Peggy and Cliffehaven in the hope that the love and comfort she will find there can help her recover. However, Eddie continues to be an unsettling reminder of her past - and Doreen's life is about to change dramatically.