Imagine living every minute of your life with someone who looks like you, talks like you, thinks like you, dresses and even acts like you. Walk a set of identical twins down a typical street and heads will turn, necks will crane - twins are a source of constant fascination. Extreme Twins reveals extraordinary, captivating and intimate tales of different pairs of identical twins. Thirty-eight year-old twins who still dress the same and share the same bed; twins who marry twins; twins who share psychic powers; twins where one has had a sex change; twins who refuse to be separated and who talk in unison; and twins who have married other twins. We also meet the plastic surgeon who has operated on several sets of twins to help them regain their similarity as age and lifestyle has made their faces drift apart.