This gripping psychological drama stars Emily Watson as dedicated forensic psychiatrist, Emma Robertson, who is assigned to work with Connie Mortensen (Denise Gough), a wife and mother accused of a despicable crime. Her assessment of the so-called ‘yummy mummy monster's’ sanity will determine whether Connie faces life in jail, life in a secure psychiatric hospital, or the chance of rehabilitation and release. Emma hopes that the high-profile case will make her career, but her sessions with Connie quickly become a complex psychological game of cat and mouse with confusing sexual undercurrents. Connie has a searing insight into Emma's insecurities and brutally exploits them. Can Emma see to it that justice is done without destroying herself in the process?