Somehow it all began when old Gran D'Grou came from the West Indies to a small island off the Atlantic coast. When he dies, his grand-daughter Lilla is distraught. For the islanders always bury their dead at sea - and ignore the dead man's last wish to be buried on land. So one night Lilla dives down and brings his body to shore. Soon after, the mystery killing happens...followed by a growing stench of rotting death. When a violent sea-storm threatens the island, most of the inhabitants head for the mainland - leaving only a few people behind...trapped with something hideous that walks by night...