Rival Eyes - S6.E5

Harry has just moved to the peaceful village of Upper Ridley and Rocky is lodging with him. They help Sylvia Clayborough, a young widow, who has taken over her husband's fishmongering business but is plagued by vandalism: the fish-van's tyres are let down and graffiti is sprayed over it. When Sylvia and another widow, Vivienne Blake, start to compete with each other to welcome Harry to the village, Harry begins to realise that he has uncovered a hotbed of rivalry, jealousy and frustrated passion. Harry and Rocky eventually track down the vandal: Vivienne's wayward nephew who is staying with her.

Thomas O'Rourke, an Irish builder, asks Ken to investigate a break-in and theft of cash at his office. He suspects Brian Jonson, another builder. He thinks it is a dispute between Catholic (himself) and Protestant (Jonson). O'Rourke tries to settle his score with Brian by demolishing his office with a JCB. However O'Rourke's daughter, Caitlin, thinks the real culprit is her elder sister, Bernad