Everyone is convinced of the existence of ghosts. Even Captain Nemo claims to have seen supernatural beings!
But the young Jules is not satisfied with what people say, he has to test scientifically whether it is true or not. And what better place to do that than in the abandoned lighthouse that is inhabited supposedly by a spirit?
If ghosts do not exist, something unusual must be happening in the lighthouse and Jules and his friends are going to get into trouble for being curious. And if ghosts do exist ... then they will be at mortal danger, because there is nothing that can stop a ghost when he wants to take you with him into the afterlife.