In the late nineteenth century, two travellers are waylaid at a small harbour town on the Normandy coast. Stopping at the local inn, they stumble upon the aftermath of a strange accident - the victim, nearly catatonic, claims to have seen something in the canal. From this, our two travellers overhear a remarkable conversation between a group of seafarers, sharing their more inexplicable experiences working on the water. Some which have stumped them, some that made them wonder what else the ocean might conceal, some that have haunted them for years.