While Leo is away on holiday, Nikki receives a call about a dead woman close to Wimbledon, early Monday morning. Together with DCI Daniel Thompson she needs to figure out who this woman was, what she was doing out in the cold, rainy night and what happened to her. It becomes clear she wasn't just an ordinary housewife. In the meantime, she begins to suspect Harry is seeing someone.

Silent Witness. This story is mainly about Nikki. She's had a traumatic experience and she hasn't dealt with it, though she keeps telling everyone she's fine... Meanwhile, Harry and Leo keep getting more worried and they do everything to help her.