17-year-old teenager Stephen Cartwright (yes, we're meant to believe Robert Sheehan is 17) stands charged with a serious offence, as his anxious father Peter (John Bishop) looks on. Months beforehand, Peter is trying his best to help his sons face the imminent death of their mother. When the palliative care nurse Charlotte (Sheridan Smith) arrives, Peter is grateful of her help at this most painful and stressful time. Stephen, however, is less sure of this efficient nurse assigned to see his mother through her final days. When his mum passes on, he becomes more suspicious of Charlotte’s motivations. But is Stephen’s angst and grief clouding his judgment? And why is Alastair Campbell (Alistair Campbell) talking to him?