Not with Kindness

Frost's sister-in-law, Marion, has come over from the United States for her sister's funeral, but her staying at Frost's house leads to friction. Frost is assigned another assistant, Det Sgt Gilmore. As DCI Allen is still on medical leave, Denton's incoming cases fall to Frost. These are a missing teenage girl, Paula Bartlett, and the case of a woman who has been receiving threatening phone calls and suffering malicious pranks.