This time the murder victim is a board member of an exclusive private prep school. The detectives and the D.A.'s office pursue the possibility that the murderer is transit worker Bill Harrigan (Bruce Kirkpatrick), whose son Colin (Graham Sack) was expelled from school. Or can it be that Colin himself is the killer -- or, perhaps, another student, Stewart Barclay (Matthew Thomas Carey)? ~ Hal Erickson, Rovi