Plot Summary

Fermat’s Room is a gripping psychological thriller that blends mathematics with suspense, placing four strangers inside a deadly intellectual trap. Each of them—renowned mathematicians brought together under aliases inspired by historical figures—accepts an invitation from a mysterious host known only as “Fermat.” Drawn by curiosity and the promise of solving an extraordinary puzzle, they gather in a secluded house, unaware of the life-threatening game awaiting them.

Once inside a carefully prepared room, everything seems controlled and deliberate—until Fermat abruptly leaves and the door locks behind him. Shortly after, the group receives their first challenge via SMS: a seemingly simple logic problem with a strict time limit. As they struggle to solve it, the stakes escalate dramatically when the walls of the room begin to move inward, slowly crushing the space around them.

With each unsolved puzzle, the room shrinks further, turning intellectual failure into a fatal consequence. As tension rises, the mathematicians must not only rely on their analytical skills but also confront their pasts and hidden connections. Suspicion, fear, and urgency intertwine as they race against time, realizing that survival depends on solving each riddle before the walls close in completely.