The Brokenwood Mysteries (2014)

S3E1 The Black Widower

Ray Neilson, the publican of The Frog and Cheetah, has ventured into tourism with his 'Lord of the Ringz Tours' aimed at non-English speaking visitors. However, the situation takes a dark turn when his wife, Debbie, is found dead beneath a massive foam spider at a supposed Mirklewood filming location. The discovery becomes even more troubling when it's determined that she died from a bite of New Zealand's sole native venomous spider, the Katipo. But how could one spider deliver a dose ten times more lethal than normal?