Continuity mistake: Shelly stabs the killer in the leg with the scalpel. But when we see the killer following her, he seems unhurt and there is no blood or anything.

Valentine (2001)
Plot summary
Directed by: Jamie Blanks
Starring: Katherine Heigl, Denise Richards, Marley Shelton, David Boreanaz, Hedy Burress, Jessica Capshaw, Jessica Cauffiel
After being beaten and humiliated at a 9th grade valentines day dance a vengeful geek returns years later and seeks revenge on the five girls that said cruel things to him when they were in jr.high. After one of the girls is found dead with her throat slashed the others are sent morbid valentines with the initials JM, they realize who the killer might be but they havnt seen him for years and dont know what he could look like now. He could be anybody.
Ruthie: Watch your back... leech.
Trivia: Denise Richards as a kid tells the boy that she'd rather be boiled alive than dance with him. She dies precisely that way later in the movie.
Question: Whenever Adam / Jeremy Melton is the killer and he kills one of the girls his nose starts to bleed, obviously from all the stress he has to go through to kill them. But whenever he's not the killer, why doesn't his nose bleed? Until at the very end when his nose starts bleeding on to Kate.
Answer: Paraphilia is a condition characterized by abnormal sexual desires, typically involving extreme or dangerous activities. He technically "got off" when killing people.





Answer: Plot hole? Or perhaps Adam's / Jeremy's nose was bleeding because he was about to snap Kate's neck. Or it was because he was so happy.
Alan Keddie
He killed Dorothy at the end that could be why his nose bleeds.