Carol answers the door to an unexpected early morning visitor. " You want to know why I was hiding under a bridge with a hammer?" Taking the stranger through the house, she says she needs to finish baking her cupcakes. As she bakes, she talks about how much she loves her daughter, Jessica, who has become the absolute focus of her life and about her long-running feud with the neighbours. Having given her life to bringing up her daughter, Carol still finds herself alone and aware that she and Jessica are growing apart. From Jessica's belongings and online accounts, Carol discovers that her daughter isn't the perfect Oxford-bound girl she'd supposed. Jessica has become someone else entirely, someone Carol can't recognise. Carol takes matters into her own hands.. She is completely unable to face the consequences.