Character mistake: Given how smart the lead is he doesn't seem to know the proper dosage of sleeping meds he put into his mother's coffee. He placed in enough to possibly cause an overdose.
Deadly Friend (1986)
1 character mistake
Directed by: Wes Craven
Starring: Kristy Swanson, Anne Twomey, Matthew Labyorteaux, Michael Sharrett
Plot hole: It seems unlikely Paul could've just taken Sam's body out of the hospital with ease and not run into security.
Upvote valid corrections to help move entries into the corrections section.
Suggested correction: Saying that something "seems unlikely" isn't really good enough to constitute a plot hole.
Tom: Hey, she's dead? Hey, what the hell are you doing, you didn't say anything about a dead body, we were supposed to save her life.
Trivia: Wes Craven has stated that he was surprised that the film was even watchable, citing that he was going through a nasty divorce, being hit with a false plagiarism lawsuit and had just lost several major directing gigs (including "Beetlejuice") during production, impacting his mental state. He also was dealing with studio-mandated rewrites and reshoots that changed the story drastically from his original vision.