When Neil (Ben Miles Coupling) and Elizabeth (Rachael Blake Lantana) take their children on a camping holiday to France, they find themselves continually bumping into over-friendly couple Simon (Daniel Ryan The Street) and Linda (Fay Ripley Cold Feet). Elizabeth finds the couple weird, but when they begin to spot Simon and Linda"s campervan in their rear view mirror, and a young boy goes missing from the campsite, they realise the couple are more than creepy....they"re dangerous.