The Teacher

As Helen grapples with learning about Dee's suicide, she finds herself trapped in a pressure cooker, as she keeps the secret of what transpired in the detention room. Headmaster Simon Cookson convenes a meeting to establish a support network for the students, but Helen is consumed by guilt and remains silent.

The morning after the memorial, Helen faces an onslaught of online media abuse aimed at her dismissal. She discovers her house has been graffitied with 'Terf Bitch' and loses her friendship with Tessa - the only teacher willing to accept her faults. Helen sees Blake taking her position among the students and suspects something has happened between him and Leo.

Principal Cookson informs Helen that her position has become untenable - a student tragically died because Helen crossed a line. Helen worries that Sam has been taken against his will, but O'Brien struggles to trust her story due to her previous unreliability. Cressida lures Sam further into her dark web, exposing self-harm scars, while Helen and Tessa frantically search Cressida's dorm room for clues about Sam's whereabouts. In a final desperate bid to save her son, Helen races into the Peak District. However, Cressida has shadowed Sam in her darkness, making it a fight for Helen to bring him back.