Young Emily Walton, who has suffered from psychosomatic blindness ever since the car accident that took her mother's life, must summon every instinct at her disposal to protect herself and her loved ones from a mysterious intruder.

Versatile technician Nigel and daughter Annie MacIntyre, officially her producer, are the only people people classy Prudence McCoy lets intervene in the traditional show on household tips she presents, third generation. But the TV...