A discovery at a sawmill provides a vital clue to the fate of the missing woman. Walker is troubled by his ex-wife's boyfriend and the appearance of his estranged brother.
D.I. North investigates when a mother is snatched from a wood, but the confession of a local sex offender complicates matters. Detective Chief Superintendent Walker is little help, as he has worries of his own.
Walker charges the mother of the mummified baby with the murders, but D.S. Satchell wonders whether the father should also be charged.
Walker is assigned to investigate the discovery of a 17-year-old skeleton, which he isn't too happy about - especially as he's working with D.I. North's ex-boyfriend. They soon discover more skeletons buried at the house.