A British agent's son is kidnapped and held for a ransom of diamonds. The agent finds out that he can't even count on the people he thought were on his side to help him, so he decides to track down the kidnappers himself.

"The ultimate exercise in controlled terror."

Credits

Don SiegelDirector

Michael CaineMaj. John Tarrant

Donald PleasenceCedric Harper

Delphine SeyrigCeil Burrows

Clive RevillAlf Chestermann