The film follows a small town rural police force as they try to uncover a series of non-sensical suicides caused by single older men drowning within shallow sloughs. The men are being lured to their deaths by the ghosts of those who are not present (all of whom take the form of mermaids) and the ghost of the vibrant, mysterious in-land sea. As the elderly Captain deals with the deaths of his peer group, he is faced with the understanding that his own existence is no longer necessary to either his community or himself and thus allows himself to disappear within the ghost of the ancient in-land sea. The work is about loss, loneliness, and cultural erosion on the lone Saskatchewan Prairie.