Dial M For Middlesbrough

Following Murder On The Blackpool Express and Death On The Tyne, this outing sees Gemma and Terry thrown into jeopardy when their coach breaks down in the middle of a fierce thunderstorm whilst they're on their way to collect Mildred and Hilda and take them to a funeral in Middlesbrough.

Our intrepid duo are forced to seek refuge in Shady Creek Caravan Park, a mysterious place that seems to strike a particular terror in an unusually jumpy Gemma. Here we meet an eclectic mix of characters including site owners Evie and Jed, extraordinarily clumsy chef Susan, events manager and '90s throwback Darren, drop dead gorgeous American tourist Chad, and long-term park resident Edna.

More recently arrived on the scene are holiday prize-winners (if you can call them that) Phil, who struggles to get a word in while his other half Penny struggles to stop words coming out, and excitable birdwatchers Neil and Mary, all of whom are causing quite a stir. Will any of them survive the horrors of the sinister and dilapidated Shady Creek Caravan Park?