Episode 1
Judith Potts's peaceful evening in Marlow is shattered when she witnesses the murder of her neighbour. With the local police, led by newly promoted DS Tanika Malik , reluctant to believe her story, Judith starts her own investigation.
Episode 2
Judith, Becks and Suzie are officially brought in to help the police investigation. They uncover an important connection between the murders, but can they stop the killer before they strike again?