Endgame (2011)

After the tragic loss of his fiancée, chess prodigy Arkady Balagan retreats into the confines of his hotel, becoming agoraphobic and avoiding the outside world. Despite his self-imposed isolation, Balagan's brilliant mind remains sharp, allowing him to tackle complex criminal cases. Using his strategic thinking to unravel mysteries, he navigates the challenges of both his personal demons and the intricate puzzles of the crimes he investigates, proving that brilliance can thrive even in confinement.