'Help me turn the coffin lid over.' Jane Tennison said, grabbing one end. 'What you looking for?' Doctor Pullen asked. 'I want to see the condition of the interior lining.' 'The right hand on the body has a broken fingernails, some are worn down to the fingertips.' Doctor Pullen informed them as they gently turned the lid over. The mouldy white satin lining was torn and hanging loose at the head end. Jane gently brushed it to one side revealing deep fingernail scratch marks on the interior metal. 'Oh my God,' Tennison exclaimed. 'She was buried alive.' In Unholy Murder, Tennison must lift the lid on the most chilling murder case of her career to date . .