To see a serial killer in your dream, represents people or situations that you feel are enjoying working against you. You may feel that a person is enjoying harming you or making you fail. You may have an enemy or competitor that is beating you and rubbing it in. A powerful fear of embarrassing loss or failure. A person that you feel is so terrible that want to enjoy you noticing your own failure.
Alternatively, a serial killer may reflect a problem that is influencing a lot of other areas of your life. It may also point to reckless belief system "killing off" plans or hopes you had. Positively, a serial killer may represent a serious attempt to deal with a lot of problems at once.
If you dream of a famous serial killer, then think about what stands out most about that killer to you and how that may apply to a loss or failure you are experiencing.
To dream of being a serial killer represents you enjoyment of making other people fail. You may be defeating an enemy or competitor and are enjoying rubbing it in. It may be a sign that you have issues with power trips.
Example: A young man dreamed of seeing a serial killer smashing down his door. In real life he was losing his looks. An arrogant better looking friend of his enjoyed making him notice that he wasn't better looking anymore and feeling as though no woman would want him again.
*Please See Killer