During a Swiss vacation, Bob and Jill Lawrence receive a cryptic request from a dying friend to retrieve a crucial item from his room. When they deny having it, their daughter Betty is kidnapped. The truth unfolds as they discover Louis was a spy and the item holds secrets about the assassination of a foreign dignitary. With their daughter's kidnappers tracked to London, Bob learns the assassination will occur at the Albert Hall concert. It's up to Jill to prevent the deadly plot.

The Man Who Knew Too Much
In the midst of a serene Swiss getaway, a British couple's peaceful vacation turns into a nightmare when their daughter is taken by spies entangled in a sinister plot to assassinate a prominent political leader.