Under the light of a full moon and lurking in the restless waves of the deep blue sea, someone or something watches a ship cutting through the dark waters.
Insurance fraud investigator Kate Hargrove is looking into the disappearances of women from a cruise line. She soon "disappears" herself when pulled undersea by a giant sea creature. Now, this beauty is trapped beneath the sea with a desperate beast.
200 years ago, Thaddeus Ryker was cursed and banished to the ocean depths. He has only three more days to find someone to love him in his monstrous half man/half sea creature state or he'll spend eternity as a monster of the sea.
When her terror subsides, Kate realizes she's both attracted to and repulsed by Thaddeus. As she gets to know him, she discovers a sexy, haunted man. Can she learn to love him – a monster – in just three days?