The movie is set on a noisy street in a large Europiean city with tempting store windows and impressive buildings reaching for the sky, behind the facade of one of them is going on something, which contrast with the beauty and the mood of the general public. A tormented person's face is slowly reaching up and crying for water. The Bulgarian Pavlov after three years of service in a spy network is being tortured. He and the agent going by the name of "The Bird" are suspected to operate as undercover agents for the Bulgarian Secret Services. Soon this serious accusation will be dismissed. The Bird continues to complete his assignments and Pavlov is venturing on a secret mission. Under the order of chairman of the Central headquarters Smith, the tortures were handled by Mr. Robert Huston who was a colleague of Pavlov's. Pavlov does not forgive easily and he puts down Huston constantly. As a result Smth orders Pavlov to lead the next operation and Huston to be subordinate.