Franchise timeline
Big Zapper Collection
A film series featuring a female private detective, Harriet Zapper.
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Part 1 · Jul 5, 1973
Big Zapper
A female private detective, Harriet Zapper, is hired by a rich old man to find his missing children, and becomes involved in counterfeiting and murder.
Part 2 · Jan 4, 1974
The Swordsman
When Harriet Zapper is hired to find the identity of Karel Duval, and the true heir to the Duval family fortune, a bloody trail of murders leads the Big Zapper from London to the South of France and into a hornet's nest of betrayal and death.