Ann Lake has recently settled in England with her daughter, Bunny. When she goes to retrieve her daughter after the girl's first day at school, no one has any record of Bunny having been registered. When even the police can find no trace that the girl ever existed, they wonder if the child was only a fantasy of Ann's. When Ann's brother backs up the police's suspicions, she appears to be a mentally-disturbed individual. Are they right? Written by Alfred Jingle

Canadian Richard Hannay, residing in London, meets secret agent Annabella Smith immediately following a shots fired incident. She asks to go home with him. Back at Hannay's flat the mysterious woman confides that she fears for her life and is on a critical mission relating to protecting state air ministry secrets. Later that night assassins murder her. Believed by the police to be her killer, Hannay is forced to go on the run and flees to Scotland in a desperate attempt to see Annabella's mission through before it's too late. Along the way he chances upon beautiful Pamela, who unwillingly becomes his accomplice in the mission.