Fermat's Room

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.

Cast:Alejo Sauras , Elena Ballesteros , Lluís Homar , Santi Millán , Federico Luppi , Ariadna Cabrol , San Yélamos , Alicia Fernández , Cesc Cornet , Juanma Falcón , Adam Nached , Josep Minguell , Helena Carrión , Maria Piedrahita , Víctor Benjumea , Núria Badia , Mariola Ruiz , Maria Cisneros