In honor of Halloween and all things spooky, we've gathered a collection of very real and very scary ghost stories for your ...

But with a ghost, the feeling could be more unsettling. Ghosts may stick around familiar people due to “unfinished business,” or unresolved trauma they experienced at the end of their life.

Many insist that there is no scientific evidence of their existence. But many others believe in their existence and argue that they are real.

"Ghost Whisperer" is just the latest paranormal TV drama, following the success of NBC's midseason hit "Medium," which stars Patricia Arquette as psychic Allison DuBois (also a real person).