With danger mounting, and few witnesses left, Tealeaf, with the help of Peter Bishop, tries to solve the mystery of the locket. Things however, don't quite go to plan. Elsewhere, once again Jelly becomes Jolly with unexpected results. Jeremy resorts to desperate measures as he continues the search for the missing library book, while a number of people have it in for Mrs Wren and only one man can save her. Comedy thriller, starring Reece Shearsmith, Steve Pemberton, lots of wigs and some pointy teeth.