He'll do whatever it takes to find his missing sister. But playing a killer is a dangerous game... 'Eerie, smart and brutal - this is a proper chiller' HEAT Darren Evans was only eleven when his sister Carly disappeared, along with four other teenage girls. Eventually, a woman confessed to their murders. But Olivia Duvall never told the police where the girls' bodies were buried. Ten years later, Darren gets a job in the psychiatric hospital where Olivia was committed, hoping he can make her tell him his sister's fate once and for all. And so begins a chilling game of cat and mouse - one which will put Darren and those he loves in danger...