In the season four premiere of the crime drama , titled " On Harbour Street ," DCI Vera Stanhope investigates the mysterious death of Margaret Kraszewski, a pensioner found stabbed on a busy Newcastle train during rush hour. Plot Summary
: Vera and Joe trace Margaret's life to a rundown seaside town in Northumberland, where she lived in a boarding house for 35 years. Vera S04E01
The case becomes deeply personal for Vera's colleague, DS Joe Ashworth, whose young daughter, Jessie, was traveling on the same train and is the key witness to the murder. In the season four premiere of the crime
: The investigation uncovers a tight-knit community protecting explosive secrets involving a murder from thirty years prior and a long-hidden identity. Key Details titled " On Harbour Street
: As they dig deeper, they discover that Margaret had attempted to contact the police just before her death and was a volunteer at a local women's refuge.