Corrected entry: When the killer calls Syd at the police station and tells her that he has Gail and Dewey, she asks, "How do I know those are their real voices?" (Well, the killer finishes the sentence.) But Gail had just found out that the killer had a voice changer with all their voices. So if Gail had not spoken to Sydney before the killer called at the police station, how does Sydney know to ask about whether those are Gail and Deweys real voices?
SAZOO1975
13th Jun 2008
Correction: Don't forget the killer called Sidney disguising his voice as her mother in order to fool her. Therefore it is safe to assume she knows the killer can manipulate her with other voices.
SAZOO1975