NathanCarman,ayoungmanwho,afterafishingtripwithhismotherLindaoffthecoastofNewEngland,survivesaweekonaliferaftwhilesheislostatsea.ThesensationalincidentrenewsinterestintheunsolvedmurderofCarman'swealthygrandfatheryearsearlier,spurringamediafrenzy,awaroveravastfamilyfortune,multipleinvestigationsandultimatelyfederalchargesagainstCarmanformurderonthehighseas.Withunprecedentedaccesstofamily,friendsandinvestigators,thefilmisanauticalthrillerthatexploresintimatehumanmysteriesaboutfamily,greed,perception,mentalhealthandtheunpredictablemindofanenigmaticyoungman.