The detectives investigate a murderer who poisons hospital victims with cyanide. They suspect a nurse whose profile is typical, but when they discover more murders away from the hospital they have to widen their search.
Gastrollen:
J. Smith-Cameron, Robert Levine, Jesse L. Martin(Ed Green), Jerry Orbach, Anita Gillette, Michael Cullen, Samantha Lucier, Susan Bruce, Gary Galone(2nd Detective), Les McDonough(Court Clerk), Myra Lucretia Taylor(Amanda Juno), Marc Damon Johnson(Derrick Alton), Madison Arnold(Harold Malloy), Robin Miles(Megan Tracewell), Kate Hampton(Caroline Singer), Ray Virta(Marc Truman), Robert Stoeckle(Dr. Walter Anderson), Brian McCormick(Dr. Ed Deane), Spencer Chandler(Dr. Matt Gardetta), Stephanie Roth Haberle(Mrs. Berkowitz), Margaret Goodman(Jenny Taylor), Anne O'Sullivan(Ms. O'Brien), Beth Bailey(Annie), Travis Walters(Grandchild #1), Lynda Baquero(TV Reporter), Ray Demattis(Detective), Charles Dumas(Police Review Board Member), Laura Scribner(Juror)