DS Ellie Miller and DI Alec Hardy are called in to investigate a serious sexual assault in the Dorset community.

Cast: Julie Hesmondhalgh, Steve Bennett, Olivia Colman, David Tennant, Andrea Hall, Roy Hudd, Sebastian Armesto, Jodie Whittaker, Sunetra Sarker, Andrew Buchan, Arthur Darvill, Jane Whittenshaw, Carolyn Pickles, Peter De Jersey, Sarah Parish