Fifteen years after being convicted on evidence provided by then-rookie forensic specialist Catherine Willows (Marg Helgenberger), John Mathers (Victor Bevine) is scheduled to be executed for the murder of three college coeds. At the very last moment, Mathers gets a stay of execution, thanks to new DNA evidence. Already faced with the possibility that she condemned the wrong man, Catherine gets another shock when a new murder matching the M.O. -- and the DNA -- of the earlier killings takes place. ~ Hal Erickson, Rovi