Mercader del terror was released in the year 1962。Mercader del terror is also called as Experiment in Terror, Stemmen i mørket, Operazione terrore, Mercader de terror, Kestävyyskoe, Kauhun lunnaat, Chantaje contra una mujer, brigade spéciale, Allô, Letzte Zug。

Kelly Sherwood is terrorized by a man with an asthmatic voice who plans to use her to steal $100,000 from the bank where she works. He threatens to kill her teenage sister Toby, if she tells the police. However she manages to contact F.B.I. agent Ripley.

Mercader del terror actors and actresses include Lee Remick, Stefanie Powers。