I watched this movie in the mid 90s when I was a kid.
A person falls into a swimming pool and nearly drowns. He sees a tunnel with a light at the end of it and passes several souls. Before reaching the light, the protagonist is resuscitated and survives the accident. Everything seems to be back to normal but the souls who have touched the protagonist want to bring him back to the other side. They take possession of several people who then try to kill the protagonist.
I remember one scene in a parking garage when a soul follows the protagonist.