Ela Klarich is having a hard time coming to terms with her husband's death. She quits her job of 20 years as a forensic psychologist in Naples, Florida and seeks an escape from the memories of her late husband by going to her native country, Croatia. Her island home is in the picturesque village of Mirna, where she, her husband, and her daughter used to spend their summers. Ela passes the time by painting the natural beauty of the Adriatic island as well as mingling with her friends and the locals of the small island town.

Her daughter, Gabriela, soon arrives to visit her from Boston before her classes start again in the fall. On a whim, Gabriela's childhood best friend, Megan, decides to visit as Ela practically raised her as her own. What was supposed to be a beautiful reunion of these women turns into a nightmare when Megan is found dead floating in the small town's marina after a night out in the local club. The girl's accidental drowning rocks the small village and only adds to the despair of Ela's life.

Upon returning to America for Megan's funeral, doubts about her death rise to the surface. Megan quit her job without telling anyone. A strange man came to her funeral. Megan swam competitively her entire life. Megan's desperate mother refuses to believe her daughter drowned and begs Ela to try to find out what really happened that fateful night. As Ela begins to ask questions, the real story begins to unravel and Ela's life becomes increasingly threatened. Persistent and determined to find the truth about the young girl's death, Ela discovers that the answer lies in Naples' most popular restaurant: Oceans 18.
Everything led Ela to believe that Megan was murdered by her ex-boyfriend /owner of "Oceans 18", Daniel Garcia, and the story untangles when someone tried to run Ela with a car.