Our story tonight begins on a pleasant note, with Joe and Nancy Stone, a honeymooning couple. They've been married no more than five hours, and are parked up at the side of the road by the bank of the old mill stream. Whispering sweet nothings to each other, they suddenly realise that another car has come along and parked on the bridge, turning off their headlamps. A couple get out, and they assume they're going for a romantic walk together, until the man pulls out a gun!