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 discover a commonality that changes their perception of the nature of their journey. The film was later remade, with some changes, as Between Two Worlds (1944).

An ambitious New York socialite plans an extravagant dinner party as her businessman husband, Oliver, contends with financial woes, causing a lot of tension between the couple. Meanwhile, their high-society friends and associates, including the gruff Dan Packard and his sultry spouse, Kitty, contend with their own entanglements, leading to revelations at the much-anticipated dinner.

Passengers on an ocean liner can't recall how they got onboard or where they are going. Soon it becomes apparent that they all have something in common.

In early winter, a business man who has drown in debt gives his family a ride to commit a joint suicide. His child asks mom where they are going to and she answers they are going to a picnic…