Plot hole: Most of the story depends on Costa coming forward as a witness; however, he would have had no reason to do this. It would only make his goal of assuming others' identities more difficult.
Upvote valid corrections to help move entries into the corrections section.
Suggested correction: Some serial killers try to involve themselves with the investigation, for instance famous serial killer Ed Kemper.
Continuity mistake: During the love scene Ethan has his left hand on Angelina's throat, but then it changes and it is his right hand.
Factual error: During Angelina and Ethan's "love" scene, they climb onto the table and smash what is quite obviously break away glass. No glass smashes that easily when merely touched.
