Laplace's Witch is a movie about a group of scientists who travel to a mysterious island to investigate the island's dark history. The island is said to be cursed by an evil witch and the scientists are determined to find out the truth. Along the way, they meet a mysterious girl who may have the power to help them discover the secrets of the island. In the end, the group discovers the dark truth behind the witch's curse and must figure out a way to stop it.