WOW!

A story about a psychiatrist named Malcolm (Bruce Willis) who tries to help a kid named Cole (Haley Joel Osment).
Malcolm was shot months earlier, before he met Cole, by a former patient that he worked with a long time ago who he failed to treat.
Cole doesn't feel comfortable sharing his secret with anyone. But when he gets locked in a dark closet he screams and bangs on the door. When his mother gets him out he becomes unconscious and ends up in the hospital. Malcolm comes to the hospital and visits him and that's when Cole reveals his secret (don't worry, this won't spoil the movie). His secret is that he sees dead people who nobody else sees and the dead people don't know they're dead. The dead people don't see other dead people either.
The movie is great especially the ending which is when something even bigger is revealed.