A group of strangers find themselves aboard an unmanned ship, surrounded by fog and uncertain of their destination. As they attempt to make sense of their situation, the group of passengers, which include a man (Leslie Howard) and his long-lost mother (Beryl Mercer), discover that all they have is common is that each is dead and en route to their final judgment by Thompson (Dudley Digges). However, two desperate lovers, Henry (Douglas Fairbanks Jr.) and Ann (Helen Chandler), may be different.