A wealthy family hosts a sumptuous dinner, only for a mysterious young server to chillingly unravel their lives with terrifying consequences they could never see coming.

Perez is on the trail of an attacker, Tosh investigates an oil company in the hunt for Sally’s killer, and DNA testing in the Kilmuir case yields a surprising result.

Jimmy questions Donna about the shocking DNA results, Alison arrives in Norway in search of Andreas Hagan, and an unexpected twist leads Perez and Tosh into the murky world of…

When Thomas Malone has his murder conviction overturned after 23 years behind bars, DI Perez has to reopen the investigation into the 1994 death of local teenager Lizzie Kilmuir.

The Doctor and her friends discover that the luxury resort where they are holidaying is hiding a number of deadly secrets. What are the ferocious monsters attacking Tranquillity Spa?