This question is quite broad, as many movies feature a boy being kidnapped by a serial killer. To give you a more specific answer, I need more context.
For example, are you looking for a movie:
- With a specific plot point? Like, is the boy the only victim, or does the killer have other victims? Does the boy escape?
- From a particular genre? Are you looking for a horror movie, a thriller, or a drama?
- With a specific actor? Are you looking for a movie with a particular actor playing the boy or the killer?
Once you give me some more information, I can help you find the movie you're looking for.
