Paths of a washed up detective and a deaf child cross when a series of bizarre murders occur in the waters off Fish Creek, Wisconsin. Lloyd Jornt, a washed up Chicago detective, receives a second chance in life when he is recruited to assist in the investigation of a series of bizarre murders occuring in the waters off Fish Creek, Wisconsin. The murders have no nexus other than their watery location. While studying the night with his telescope, Todd Grafton, a thirteen year old deaf boy, discovers the swimming man. Unaware of the Swimming man's evil ways, Todd believes him to be a super hero and decides to become a night swimmer himself. The ambitions of Lloyd Jornt, Todd Grafton and the swimming man collide in a battle between good and an ancient evil residing beneath a mysterious island.