The initial investigation into the death of a research scientist leads to an animal-rights group until evidence surfaces that her husband's affair with a coworker may point to a possible motive for the murder.

Allan Arbus, Anthony DeRiso, Charles Brown, David Schechter, Edmond Genest, Frances Fisher, Frank Biancamano, George Murdock, John Cunningham, Lawrence Pressman, Martina Degnan, Mary Joy, Nick Smith, Peter Birkenhead, Peter Maloney, Robert Trumbull, William Andrews