Glennon is visiting his uncle, who works as a lighthouse keeper on a mysterious island shrouded in fog. One day, a boy witnesses a shipwreck and sees several sailors fleeing. But their faces are completely pale, and they are also terribly afraid of the local cat... Meanwhile, the inhabitants of the island are preparing for some kind of terrible holiday. Rumor has it that after the holiday no one will be able to leave the island... Will the boy really have to stay here forever?