On the way back to school for the first time after her maternity leave Janine witnesses a hit and run outside her son's school. While wishing to investigate, she is at the same time summoned to view a corpse found in the river. A public appeal reveals the woman to probably be Rosa Milicz, who worked at Topcat, a lap-dancing club. Meanwhile the little girl involved in the hit-and-run dies. Richard and Shap go to Topcat where they discover that the manager of the club is James Harper, who coincidentally also owns the hit and run car.