The sexual tension between the two couples reaches boiling point during a weekend away. Alan's obsession with Becka escalates, with devastating consequences.

Cast: Eleanor Tomlinson, Alfred Enoch, Sam Heughan, Jessica De Gouw, Ioanna Kimbook, Hugh Dennis, Kate Robbins, Joel Morris, Janine Duvitski, Daniel Bell, Deirdre Mullins, Noah Holdsworth