A Killing Frost

The discovery of two teenage girls' bodies and a video of a snuff movie leaves Detective Inspector Jack Frost in a race against time before the killer can strike again. Meanwhile, someone is poisoning foodstuffs at a local supermarket chain. When the owner receives threatening demands, it is up to Frost to catch the blackmailer. As Frost faces questions over the handling of the cases, he faces a threat to his professional life with the arrival of DCI Skinner. Is this the end for Jack Frost?