Death Match, is a 2004 horror novel by American author Lincoln Child. In it he takes a cursory glance at the world of electronic matchmaking, and takes it to its natural technological conclusion—for a substantial sum of money, the computer will locate a 'perfect match' for anyone.
Every once in a rare while, the most perfect of 'perfect' matches ('supercouples, of 100% compatibility) is located. Then tragedy suddenly strikes. One of the "supercouples" is found dead in their Arizona home, an "unquestionable" double suicide.
Child's analysis of the topic proves a useful tool to opine on the topics of psychology, relationships, cutting-edge computer technology and artificial intelligence.