A British businessman named Geoffrey Harrison is kidnapped by Louis in Paris and his company's head of security is dispatched to get him out. But some fanatical terrorists have other ideas. Archie Carpenter, a security chief investigating the disappearance of British businessman Geoffrey Harrison, his wife Violet had no such problems as she lives in Paris.

In the stifling heat of a Paris summer, Louis moves the kidnapped Harrison into a deserted warehouse, and has been ordered to execute his prisoner by his leader and lover Justine. Meanwhile, Security Chief Carpenter persuades Harrison's wife Violet to give a televised appeal, in the hope that someone might recognise Louis or her husband.