A man who suspects his wife of betrayal hires Zózimo to investigate, but she is an old flame from the detective's past.

Zózimo is hired by Dr. Bezerra to investigate his wife, Paula.

Leon has a proposal for Zózimo; a fighter attacks the detective when he sees him taking photographs; Paranhos suggests an agreement.

Zózimo investigates when an accountant is killed; Suzana and her husband are suspects in a robbery.

Paranhos falls in love with Celeste after arresting Almir, who is later murdered; Gracinda tries to hire Zózimo, but he refuses.