Summoned to a remote warehouse by the enigmatic Fermat (Federico Luppi), four brilliant mathematicians are given pseudonyms — Galois (Alejo Sauras), Hilbert (Lluís Homar), Olivia (Elena Ballesteros) and Pascal (Santi Millán) — and tasked with solving highly complex numerical riddles. As the apparent strangers struggle to solve the puzzles and determine why they are there, the stakes get higher as the walls literally begin to close in around them.
