Trade

When prostitutes are murdered in the financial heart of London, Chappel reaches out to working girl Sandra, warning her to stay away from the unit's prime suspect, arrogant financier Gordon Ellis. Chappel uncovers a link between the murder victims and Ellis, but Hutchins isn't so sure that CCTV footage supposedly capturing the second victim with Ellis is concrete. As Chappel grows dangerously involved with Sandra, he becomes obsessed with nailing Ellis, and sends PC Kirsty Morgan undercover in an attempt to prove his involvement. Meanwhile, a sceptical Robinson receives news of his promotion, and announces he is leaving.