The Three Keys

Summary

Duval is on the trail of Thackeray, an international forger who robs safes and substitutes forged bills for the real thing.

Guest stars

• Edwin Richfield as Inspector Jean Mornay
• Lionel Murton as Thakeray
• Cyril Shaps as Slade
• Anthony Jacobs as Artigas
• Arnold Diamond as Lambert
• Basil Dignam as Insp. Hopkins