Private detective Tatyana Ivanova is investigating the murder of Alik Prokopyev. After the death of his brother, the young man headed an advertising company. Things weren't going well at Zebra, and Alik had to take out a bank loan. But the money soon disappeared, and Prokopyev himself was killed right in his office. There are several suspects. However, Tatyana feels that the true attacker is too smart and cunning to fall into the hands of justice. We need bait. Well, Tatyana has considerable experience. She will find a way to find the criminal and capture him, even if he has foreseen everything and provided himself with a cast-iron alibi...