Genres: Thriller, War

Keywords: imdb.u-boat, tmdb.british-fleet, mdblist.has-trailer, imdb.butter, imdb.year-1917, imdb.naval-uniform, imdb.submarine-crew + 96 more, imdb.quoting-heinrich-heine, imdb.quoting-heine-s-loreley, imdb.schoolmistress, imdb.german-submarine, imdb.world-war-one, imdb.german-spy, imdb.going-down-with-the-ship, imdb.iron-cross, imdb.undercover-policeman, imdb.ship-sinking, imdb.depth-charge, imdb.rocky-coast, imdb.counter-espionage, imdb.orkney-islands, imdb.double-agent, imdb.secret-agent, imdb.double-cross, imdb.disguise, imdb.cigar-smoking, imdb.bound-and-gagged, imdb.undercover-cop, imdb.sunken-submarine, imdb.held-at-gunpoint, imdb.impostor, imdb.german-navy, mdblist.fresh, mdblist.ext.2k-blu-ray, tmdb.submarine, imdb.pipe-smoking, imdb.pow-prisoner-of-war, imdb.1910s, imdb.color-in-title, imdb.digit-in-title, imdb.four-word-title, imdb.main-enemy-is-submarine, imdb.sneak-attack, imdb.ruthlessness, imdb.espionage, imdb.betrayal, imdb.number-in-title, tmdb.northern-england, tmdb.world-war-i, tmdb.sea-battle, tmdb.german-spy, tmdb.german-navy, tmdb.triple-agent, tmdb.torpedoed-ship, tmdb.orkney, tmdb.counter-espionage, tmdb.imposter, imdb.naval-base, imdb.cigar, imdb.british-naval-officer, imdb.assumed-identity, imdb.unexpected-visitor, imdb.catch-phrase, imdb.chauffeur, imdb.german-antagonist, imdb.german-plan, imdb.husband-and-wife-team, imdb.based-on-the-novel-of-the-same-name, imdb.attempted-murder, imdb.duplicity, imdb.british-royal-navy, imdb.quota-quickie, imdb.powell-and-pressburger-and-goring, imdb.battleship, imdb.sinking-a-boat, imdb.german-lieutenant, imdb.moral-dilemma, imdb.war-time-blackout, imdb.rock-formation, imdb.underwater-minefield, imdb.alcoholic, imdb.remote-island, imdb.stromness-harbour, imdb.canon-fire, imdb.ship-engineer, imdb.failed-plan, imdb.motorcycle-rider, imdb.submarine-attack, imdb.police-constable, imdb.orkney-islands-scotland, imdb.submarine-commander, imdb.german-captain, imdb.disaffection, imdb.wartime-rationing, imdb.deception, imdb.tied-to-a-chair, imdb.reverend, imdb.death-by-drowning, imdb.spy-thriller, imdb.naval-warfare, imdb.german-u-boat, imdb.military, aspectratio.1-37-1

Watch Providers: fuboTV, Criterion Channel, Plex Channel

Production companies: Irving Asher Productions, London Film Productions

Country: United Kingdom
Languages: German, English, Hungarian