Titanic's Ondine

Can a water nymph save her true love from the Titanic or are they both doomed forever?
Water nymph Madeleine has spent a lifetime searching for the human she can marry to become mortal. Finally, she finds true love with Joe Marlowe, but the romance is put on hold when he signs up as crew for the Titanic.
Joe never expects to see Maddy on board the ship but she's a welcome sight during the voyage. He knows she's keeping a secret from him but it doesn't diminish his love for her. They have the rest of their lives to discover each other. After an unforgettable night together in the Titanic's indoor pool he knows he's found the woman he wants to marry.
As the liner sails towards its fate, can Madeleine save Joe, and find her happy ever after?