Private detective Emil Marlovsek can boast a wealth of solved cases of run away and lost dogs. He is assisted in his work by his secretary Beba and Milivoj, a retired officer of the Yugoslav National Army. One evening, Emil encounters the beautiful Sara in the bar where he occasionally plays the piano and falls in love at first sight. The next morning Sara disappears. Not long after he is paid a visit by entrepreneur Grubelic whose wife is missing. Emil soon realizes that she is Sara and immediately starts to search for her. He discovers that Sara is being held prisoner by the mafia, on account of her husband's fishy business involving people in high places. The story's outcome is completely unexpected.