Car mechanic Sancho Gonzalez receives a large order to repair a Ferrari. If you try to cash the check you receive, you will be put under arrest. The owner of the check died several months ago and simply could not pay. Gonzalez claims that he received the check from the hands of the deceased himself. The examination confirms the authenticity of the signature. Psychologist Michael Kleid and police lieutenant Nicole Metson undertake to investigate the complicated case. The further the investigation progresses, the more mysterious this story becomes.