Newlyweds Charlotte and Eric set off on a cruise ship for their honeymoon, but a sinister adventure not only ruins their plans, but also tests their feelings. Now Charlotte has to survive under the scorching sun in the middle of the endless ocean, and later on a mysterious island in the company of the reclusive Grey. It seems that there is no way to return home, but when such a chance arises and ends in success, life throws up new surprises. One day, Charlotte finds a message in a bottle on the shore... Is there only one thing left for her to do: find her way back to the mysterious island, unmarked on any map in the world?