‘What the hell are we dealing with here?’ asks DI Rav Sangha after hearing about the gruesome calling card the child killer is leaving in his young victims.

This week’s episode reveals the true depravity of the man Marcella is chasing, but it also sees the detective take another emotional beating when Jason tells her he’s leaving
the country with their children.

Will Marcella find the strength to arrest paedophile Phil Dawkins?