The Bill: Old Habits. - Old Habits

Newly promoted Sergeant Diane Noble is feeling apprehensive as she goes out on her last shift at Sun Hill. At an out of control party on a building site roof, Diane tries to help Kieron Lawler, who is behaving erratically. Kieron has taken ketamine, and his parents fear that he got it from his sister, Sarah - but she claims she is clean. The investigation leads Diane to Sarah's ex, drug dealer Ray Pelosi. But there is more trouble in store for the Lawler family. For more information, visit