Adeline is an aspiring marine biologist who, after her little sister suffers an accident, has to prove the existence of a mythical creature called La Nereida. Well, it is believed that it has healing powers.
Unsatisfied photographer captures the photo of an eccentric homeless man. But, what seemed to be the answer to her lack of inspiration carries a much greater emotional responsibility.
Hannah, a young actress, tries to recover from the trauma of her kidnapping while dealing with the manipulation of her twin sister Emily, who forces Hannah to act like her for Emily's benefit. Upon discovering a terrible secret, Hannah is forced to confront her independence and choose between loyalty or her own path.