A young African boy has been murdered in a back alley. Despite running low on empathy, social worker Stella Hardy heads into the night to comfort the grieving mother. But when she gets there, she makes a discovery that has the potential to uncover something terrible from her past. Enlisting the help of Senior Constable Phuong Nguyen, Stella’s investigation draws her further and further into a dark world of drug dealers, sociopaths and killers.