Four mathematicians are imprisoned in a shrinking room; with the walls closing in, they must try anything to escape this fatal puzzle.

• BocaBoca Producciones
• Notro Films
• Lluís Homar
• Santi Millán
• Alejo Sauras
• Federico Luppi
• Elena Ballesteros
• Helena Carrión
• Núria Badia
• Mar del Hoyo