Four mathematicians who do not know each other are invited by a mysterious host on the pretext of resolving a great enigma. The room in which they find themselves turns out to be a shrinking room that will crush them if they do not discover in time what connects them all and why someone might wish to murder them.
|Tagline:||Think inside the box|
|Cast:||Alejo Sauras, Elena Ballesteros, Federico Luppi, Helena Carrión, Lluís Homar, Mar del Hoyo, Núria Badia, Santi Millán|
|Director:||Luis Piedrahita, Rodrigo Sopeña|