At a Glance

The crew of the American Submarine, U.S.S. Manta go to the rescue of survivors from a downed British hospital ship. The crew start to believe that the Manta may be haunted or possessed by an unworld being...

Detailed Information

As the weary crew of the World War II sub USS Tiger Shark heads home to Connecticut after a long, grueling mission, they come across three survivors of a torpedoed British hospital ship, including one female nurse (Olivia Williams).

Tough, ambitious Lt. Brice (Bruce Greenwood) takes the survivors aboard--to the chagrin of the crew, who is reminded of the old adage that a woman on a sub is bad luck. Bad luck, it turns out, is exactly what they get--whether it's due to the woman aboard, pranksters playing tricks, the sanity-eroding effects of oxygen deprivation or ghosties in the dark.

The sub and its crew, already dodging the Nazi U-boats that hover above them in the Atlantic waters, periodically sending down depth charges or trolling the deep with massive sub-catching hooks, must also contend with the strange happenings inside--frightening noises, voices whispering from the sub's depths, phantasmic visions and, alarmingly, inexplicable mechanical failure.

Suddenly the sub is stuck on the ocean floor--oxygen is running out, the too-close quarters are seemingly getting even more cramped, and bizarre, unspeakable accidents are killing off the crew.