

Someone is stealing priceless paintings from the great museums of the world and replacing them with nearly flawless forgeries. Leonardo da Vinci's "Madonna and Child" is being shipped to London's Tate Gallery for a special exhibition, and Paul Mitchell is assigned to protect it. Upon the painting's arrival, Paul realizes it has been switched. Eager to collect the museum's $50,000 reward, he teams up with Mary Mason, a Tate employee, to recover the original.
Production
Tate Gallery location shooting—rare 1950s museum access.
Acting
Coleen Gray elevates every scene she's in; O'Keefe just punches clock.
Director
Godfrey Grayson
Trivia, insights & behind the scenes
Hammer Film Productions made this as a quota quickie—shot in under three weeks to fulfill UK distribution requirements.
The real Tate declined a second filming request after this, making this one of few 1950s features with authentic gallery interiors. The 'Madonna and Child' prop was likely a studio copy of Leonardo's Burlington House Cartoon.