The Moth Catcher

S6, E3: Detective drama series based on the novels by Ann Cleeves. DCI Vera Stanhope investigates a mysterious double murder in a remote country manor house. After the man who was minding the house is killed in a hit-and-run, Vera and DC Aiden Healy then discover the body of moth enthusiast Martin Nielson stabbed to death on the dining room floor. Captivated by the strange circumstances surrounding these two murders, Vera and her team attempt to build a clearer picture of what happened the night before.