Follow the lives and woes of the residents of a Manchester house divided into four different flats. Gemma Foster's neighbour, Emma, now goes by the name of Belle, looking to start a new life. Three other interconnected stories tell a tale of love, loss, birth, death, the ordinary, the extraordinary, and everything in between.

As the Cold War rages, ex-smuggler turned reluctant spy Harry Palmer finds himself at the centre of a dangerous undercover mission, on which he must use his links to find a missing British nuclear scientist.