Celia Barrett, riche héritière, rencontre pendant des vacances à Mexico Mark Lamphere, qu'elle épouse aussitôt. Mais le soir des noces, son mari la quitte brusquement, sans aucune raison apparente. La jeune femme va peu à peu réaliser que celui qu'elle a épousé est un homme bien étrange…
A college student takes a break and goes out to sea with his father, the captain of a shark-hunting boat. When his inexperience results in an accident in which his father and a crewman are badly injured, he tries to make up for it by rounding up another crew and going back out on the hunt. However, things don't turn out quite the way he planned.