A young Nigerian girl is found dead at a bus stop, opening an investigation into her death and leading Inspector Jen Rooney to a direct provision centre.
The team discovers Esme had been forced into prostitution, and that Abeni has a connection to a brothel where she worked. Wayne is suspected of being involved in something illegal.
Abeni fears that the owners of the brothel may try to harm her, but is too scared to tell the police. Flora escapes from the care home she has been placed in.
The police put Abeni under surveillance as her bosses at the brothel begin to treat her differently at work. Abeni fears for her life, Flora is subjected to horrors.
The police find new leads in the wake of the raid on the brothel, and Abeni begins to confide in them about what she knows. However, the gang is already rebuilding their business.
Abeni must choose between helping her friends and keeping her family safe. The forensics team examine the brothel, and finally discover how Esme died. Last in the series.