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.

Ruth travels to a seaside holiday park to stay with her boyfriend Tom. It’s off-season, so the resort is mostly deserted, except for a few residents and a handful of staff charged with sprucing up the place. Ruth gradually settles into her new environment, finding work and making a new friend in the form of make-up enthusiast Jade. But one afternoon, while giving Tom’s caravan a spring clean, Ruth finds evidence her beau might be cheating on her. As her desire to uncover the truth turns into an obsession, she begins to realise she might be looking for something else entirely.

When an English cartographer must tell a Welsh village that their mountain is only a hill, the offended community sets out to change that. The film is based on a story heard by Christopher Monger from his grandfather about the real village of Taff’s Well in the old county of Glamorgan, and its neighbouring Garth Hill. However, due to 20th century urbanisation of the area, it was filmed in the more rural Llanrhaeadr-ym-Mochnant and Llansilin areas in Powys.