By chance, Miguel el Tarta becomes a potential boxing champion. Manipulated by Manolo, his opportunistic and cynical best friend, and several unscrupulous individuals, Miguel is thrown into the ring, where he tries to fight with more enthusiasm than technique.

• Aspa
• José Luis Ozores
• Tony Leblanc
• Hélène Rémy
• José Marco Davó
• Julia Caba Alba
• Miguel Ángel Rodríguez
• Antonio Garisa
• José Ramón Giner