WPC Hutchins takes on more than she can handle while working under cover, when she discovers that a night club boss has a side line in S&M films. This also brings back painful memories to her boss Pat Chappel.

PC Hutchins is making slow progress in her bid to find the young boy who was involved in a porn film, but believes his parents are hiding important information about his past. Meanwhile Chappel's professional relationship with Christina becomes personal.