COP SLAYING POINTS DETECTIVES TO GERMAPHOBIC DOCTOR; ANDREW MCCARTHY GUEST STARS -- The murder of a crooked cop puts Detectives Goren (Vincent D'Onofrio) and Eames (Kathryn Erbe) on the trail of an obsessively clean doctor (guest star Andrew McCarthy, "Mulholland Falls") whose previous girlfriends all seem to be afflicted with a "zoonotic" disease -- or a virus found only in animals. Their probe also points to a preening veterinarian (guest star Todd Stashwick) as well as a looming psychological component that is crucial to putting a bulletproof case together. Jamey Sheridan and Courtney B. Vance also star. TV-14