Diane was the co-anchor of Channel 5 News alongside Tom Tucker for most of the series. She began dating James Woods after meeting him at a party, and was for a while her life was perfect. When she turned 40, however, Tucker arranged to have her replaced by a younger, more attractive anchorwoman, and Woods dumped her.

Realizing that she didn't anticipate the possibility of Woods leaving the chair and that her plot was in danger of failing, Diane improvised by stabbing Woods to death with a knife