AfterembarkingasapassengeronboardacargoshipreturningtoEuropehebeginstoquestionhissanityandtheveryunderstandingofhisperceptionoftimeinthisromanticpsychologicalthrilleratsea.Afterabriefencounterwithoneoftheshipmates,James,Christophersettlesintolifeonboardtheship.Hislifequicklyfallsintoaroutinethatshapeshisday-to-dayexistence,mirroringthemonotonyoftheship’spassagethroughopenwaters.