It is freezing mid-winter on Exmoor, & in a close-knit community where no stranger goes unnoticed, a local woman has been found murdered in her bed. This is local policeman Jonas Holly`s first murder investigation. But he is distracted by anonymous letters, accusing him of failing to do his job. Taunted by the killer & sidelined by his abrasive senior detective, Jonas has no choice but to strike out alone on a terrifying hunt.. .but who is hunting who?