A shock confession sheds new light on the investigation. But before Pip can decide what to do next, she receives another threatening message.

Cast: Emma Myers, Zain Iqbal, Asha Banks, Raiko Gohara, Jude Morgan-Collie, Yali Topol Margalith, Henry Ashton, Yasmin Al-Khudhairi, Mathew Baynton, Gary Beadle, Anna Maxwell Martin, Jackson Bews, Kamari Loyd, Georgia Lock, Ephraim Sampson