Liverpool DI Colette Cunningham moves to Dublin when she learns her estranged daughter has committed suicide. Unaware of their existence, Colette meets her two teenage grandchildren. Colette sets out to uncover the truth about her daughter’s death.

Colette pieces together a picture of Stacey’s life, but something doesn’t quite add up about her daughter’s final days. At home, Colette’s grandparenting skills are tested as she adjusts to living with Liam and Cara.

Organised Crime confirms Colette’s suspicions that there’s more to Stacey’s death than suicide and that Stacey’s boyfriend is not quite the charming man he appears. At home, Colette rocks the boat with Cara and has to work hard to make amends.

Colette’s all but convinced Stacey was murdered but can’t prove it yet. At work, a routine case takes a sinister turn. At home, things appear to be improving until Liam shares a secret that blindsides Colette.

Colette finds a new lead in Stacey’s last moments. What was Stacey doing on that final night and where was she going in her final hours? Meanwhile, Colette struggles to adapt to the addition of Liam and Cara’s father as he bids for guardianship.

Colette finally gets evidence to confirm what she’s always suspected: Stacey didn’t kill herself. Events take an unexpected turn as Cara goes missing. Colette must think quickly if she’s to uncover the truth behind Stacey’s death and to save Cara.