The disaster travel

Manette, a man from France is married a young lady Lucie from Spain. Manette's brother is shot by someone on the day of Manette's wedding. They travel to India to get rid of there disaster and reach Goa. They find Mr and Mrs Gomez and become friends with them. They attended the party of there daughter Juillet,were Lucie finds a bottle inside which a message is written. They find that the message is about a blackmail to a random. The follow the message and get stuck in an island and try very hard to escape in which Lucie loses her life. The blackmailers are aware of Manette's search for them. And they start blackmailing him. Does Manette find who the blackmailers were and who shot his brother down?