Scent of a Kill

Merton is reluctant to involve his team when one of Liz's patients becomes convinced her husband is trying to kill her - until she is nearly killed by a runaway tractor. Meanwhile, Vernon's pest control solution jeopardises Aidensfield's chances of winning the "Best Kept Village" award, leaving him to contend with a furious Blaketon's wraith. Elsewhere, Steve is smitten with Gina's cousin Diana when she turns up to help Gina with the wedding preparations, whilst Bellamy neglects his police work to plan the wedding and faces a dilemma when trying to find a best man.