4 mathematicians are invited to solve an enigma. Once there, they're locked in a mechanically shrinking room and given 1 minute to solve each puzzle via cellphone while also figuring out why they're there.
Directed byLuis Piedrahita, Rodrigo Sopeña
Written byLuis Piedrahita, Rodrigo Sopeña
CountrySpain
Runtime88 min
On screen
Alejo Sauras
Elena Ballesteros
Lluís Homar