Northern Exposure - Season 4 Episode 5
Blowing Bubbles

Cicelys newest resident, Mike Monroe, is confined to live in a plastic bubble because of M.C.S. (Multiple Chemical Sensitivity), which makes him allergic to nearly everything manufactured in the twentieth century. After Maggie meets Mike she becomes interested in him. Ruth-Annes son Matthew, the investment banker, comes to Cicely to try to get away from it all when he is fired from his job. Maurices prospectus on making Cicely a place for sick people to move to and recover from their illnesses draws Matthew back into thinking about money.