Ealing Studios production following the stories of a variety of different people caught up in the same train crash. From the the train driver, who is only driving because his daughter's boyfriend has failed to show up for work, & the composer caught up in a difficult love triangle, through to the young woman on the run with her German P.O.W. boyfriend & the murderer who is making the journey to dispose of a body, the crash brings about a decisive change in the lives of all those involved. The film is divided into four separate stories, each representing a different viewpoint on events, & all converging together in the fateful rail disaster.