Dr. Shark (2011)

South Pacific: The famous Dr. Shark, a mysterious character strongly suspected of heading a secret criminal organization, is organizing a cocktail party on his private island. You are a secret agent and have just received an encrypted text message: "Cocktail party organized by Dr Shark – Important evidence probably hidden in pool – Attend party and recover evidence – Beware sharks! Invitation to follow by courier. IN THE EVENT OF FAILURE, WE WILL DENY ALL KNOWLEDGE OF YOUR ACTIVITIES."