Ruth and Nick are called to a gruesome discovery at the beautiful Lake Vyrnwy but have little to go on to identify the grisly remains. When a local man is reported missing, it seems that his links to a Merseyside gang might explain his disappearance. However, closer scrutiny seems to suggest that it might also be a domestic dispute that simply got out of hand.

When the man is spotted at various locations, Ruth and Nick must discover if he is on the run and hiding, or if there is a darker manipulation that could explain the sightings.