The squad investigates a drive by shooting in which 2 people were killed and five injured. With DI Adrian Dumfries in charge of the case, the shooting is put down as a Turk-Kurd turf war. One of the dead however was sitting in his car on a side street and DS Stone finds a number of anomalies. While he was definitely shot, it also appears that he was severely beaten. When the toxicology results show he was also being slowly poisoned, Stone and DI Susan Alembic are sure they have a murder on their hands.