An action thriller starring the macho Rod Taylor, directed by an action-movie "craftsman", Robert Clouse, best known for having been lucky to direct Bruce Lee in his first and only successful American film "Enter the Dragon".
The protagonist saves the life of a girl thrown into the water with a weight tied to her feet (played by Suzy Kendall), and a fiery loving passion will be born between the couple. However, the shady affairs in which she is involved soon come to the surface and their relationship is destined to end violently.
The film does not offer great opportunities to show the actress's dramatic performances and is easily forgettable among the many made into the vein of "underwater" films.