Vicky's ex-husband, John, invites her on a trip to communist Prague. First John disappears, then her passport. Vicky finds herself alone and penniless in Prague and becomes a tragic pawn caught in a web of espionage and murder.

• Hammer Film Productions
• Susan George
• Patrick Mower
• Richard Heffer
• Peter Vaughan
• Stefan Gryff
• Sandor Elès
• Catherine Neilson
• George Mikell