An undercover British agent is caught in an Eastern Bloc country and names Mannering as his contact. The Baron and Cordelia are in the country to pass over some money. They are warner not to go to the rendezvous by Bradfield as it is a trap. Cordelia is caught and held by the police. Mannering has a plan to kidnap the head of the police but there is a double agent in the Bradfield house.

Mannering stops up to pick up a petrified girl in a country lane, as they drive away they are shot at and crash off the road. When he comes to, he keeps having flashbacks that feature weird objects but the police simply think that he is suffering from concussion. As he tries to retrace his footsteps, he is watched by a man with a gun who is determined not to let him near the house in which the girl is held hostage.

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