| Director | Gustav Machatý, Guy Green |
|---|---|
| Genre | crime film, mystery film |
| Country | United Kingdom |
US embassy employee Lee Cochrane and his Austrian wife discover their 18-month-old son Simon has been abducted after their nanny leaves the child unattended outside of a chemist's shop. London detective Inspector Craig pledges to find the child, though clues are scarce.
The couple are criticized in a newspaper article. They and the police follow up various leads which turn out to be dead ends, including supposed kidnappers who are con artists.
Eventually, the wife of one of the officers recognizes the words in a torn piece of paper as belonging to a particular novel. This enables the police to track down a copy of the novel that was borrowed from the library by a widow who had been seen with the baby. It is discovered that she lost her own baby after her husband drowned and she kidnapped the Cochranes.