5 Steps to Danger

5 Steps to Danger is a 1957 American Cold War spy film. It was directed by Henry S. Kesler, and starred Ruth Roman and Sterling Hayden, with a cast that also included Werner Klemperer, Richard Gaines, Charles Davis, and Jeanne Cooper. It was based on the novel The Steel Mirror by Donald Hamilton.

During a stopover a woman identifying herself as a nurse takes John aside in a diner and says she has been following them because Ann is an escaped mental patient of a Dr. Frederick Simmons. And although he isnt sure what to believe, John begins to doubt Ann when two policemen attempt to arrest them, claiming to be investigating a murder in Los Angeles.John and Ann manage to slip away. He demands the truth, whereupon Ann says she is an exGerman citizen who stumbled upon a government plot and is in possession of valuable scientific transcripts embedded on a small cosmetic mirror. In order to prevent Simmons from having Ann committed to a mental institution against her will, John asks Ann to marry him, while also declaring his love for her. They wed in a small town and then continue their journey to find the scientist who wrote the transcripts. The chase ends in a confrontation between Simmons, who is actually a Soviet spy, and his accomplices versus FBI and CIA agents, who verify Anns story. Ann and John enjoy their honeymoon on the fishing trip John had originally planned. ........

Source: Wikipedia