Marcella is shocked to the core of her being when her husband Jason leaves her unexpectedly, confessing he no longer loves her. Heartbroken, Marcella returns to the Met’s Murder Squad. Ten years ago Marcella gave up her fast-tracked police career to marry and devote her life to her family. With the abrupt end to her marriage and isolated from her 13 year old daughter and 10 year old son, Marcella throws herself into work to stop herself from falling apart.
When the Police Service of Northern Ireland are unable to close a case after 28 days, Detective Superintendent Stella Gibson of the Metropolitan Police Service is called in to review the case. Under her new leadership, the local detectives must track down and stop a serial killer who is terrorising the city of Belfast.
Four women juggle love, careers, and parenthood. They support, challenge, and try not to judge each other as life throws them curveballs. Whether it is an identity crisis, a huge job opportunity, postpartum depression, or an unplanned pregnancy – they face both the good and bad with grace and humour.