The English Defence (S11E08)

As the UCOS team delves into the murder of 55-year-old interpreter Agnes Bradley, they uncover a partial DNA match linked to a teenage boy, known for once daringly throwing a brick onto a motorway. Questioning him leads them to suspect a male relative might be involved, only to learn that the boy’s mother was a rape victim, suggesting a potential rapist turned murderer. Agnes, an avid chess player, prompts Gerry Standing and Steve McAndrew to speak with her local chess club, while Sasha Miller and Strickland follow leads from her professional life, encountering a Chilean diplomat with a grudge. Meanwhile, Steve faces a personal crisis as his elderly father nears the end of his life, and he brings him to a hospice in London.