There was a movie I remember watching in which a boy's dad starts dating a new attractive woman but the kid doesn't trust her, the woman turns out to be a flesh eating monster, one scene I remember in particular is when the kid goes to a therapist and tells her about the woman being a monster and later on the woman/monster ends up attacking and eating the therapist after the therapist doesn't believe the son. If anyone can help me out with this it would be great it has been racking my brain

Stepmonster (1993) (http://www.imdb.com/title/tt0108223/)

Thank you very much.. how in the hell did you know that

Quinn is all knowing.