Sigourney Weaver is "Helen", a psychologist who has a major panic attack if she has to leave her apartment to fetch a newspaper from the corridor outside! She is, however an expert on what drives serial killers - having had a pretty near death experience with one earlier in her career - Harry Connick Jnr, no less. When a copycat starts to kill young women, she is drafted in by police officers "Monahan" (Holly…